Search found 173 matches

by ninthinning
23 Jun 2012, 03:51
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Delta Trigger Job for PS90
Replies: 4
Views: 7932

Re: Delta Trigger Job for PS90

When the safety is off what prevents the gun from firing when dropped on butt?
by ninthinning
20 Mar 2012, 17:57
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 HD Bolt Rate Reducers.
Replies: 58
Views: 104478

Re: PS90 HD Bolt Rate Reducers.

I'll take two
by ninthinning
18 Sep 2011, 18:15
Forum: 5.7x28 Reloading
Topic: BBS 45 grain bullets determined to be AP
Replies: 1
Views: 3772

BBS 45 grain bullets determined to be AP

fnforum.net/updated-09-11-atf-determination-for-bbs-45grain-projectile-t27789.html
by ninthinning
11 Jul 2011, 04:01
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Owners I Need Your HELP!
Replies: 69
Views: 141159

Re: PS90 Owners I Need Your HELP!

I sure hope you can solve the popping mag problem.
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by ninthinning
10 Jul 2011, 14:27
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Owners I Need Your HELP!
Replies: 69
Views: 141159

Re: PS90 Owners I Need Your HELP!

I am really looking forward to trying the heavy mag release springs. Your solution to the chipping FiveseveN magazines is ingenious.
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by ninthinning
10 Jul 2011, 10:50
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Owners I Need Your HELP!
Replies: 69
Views: 141159

Re: PS90 Owners I Need Your HELP!

Maybe a stronger set of hammer springs would help hold the bolt closed a little longer?
by ninthinning
10 Jul 2011, 06:26
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Owners I Need Your HELP!
Replies: 69
Views: 141159

Re: PS90 Owners I Need Your HELP!

My two PS90s are 25,000 apart in serial number and perform identically. When they were stock the magazine would not pop with new 195 or 197. Both guns popped the mags 2% when using old powerful 195. With hand loads the problem became ridiculous. When I weighted the bolt both guns performed better. E...
by ninthinning
23 Apr 2011, 04:07
Forum: PS90 & Other 5.7x28mm Rifles
Topic: California-compliant PS90
Replies: 30
Views: 23304

Re: California-compliant PS90

That is an excellent job. Have you had a chance to fire it? You might have to weight the bolt when you fire rounds that are more powerful than the factory made stuff. Its ironic that the California law causes you to end up with a rifle that is more potent than the stock gun. That 18" barrel really s...
by ninthinning
05 Apr 2011, 05:28
Forum: FiveseveN handguns
Topic: Trigger over travel screw
Replies: 16
Views: 11894

Re: Trigger over travel screw

"Now if I knew how to make my own springs."

How to make springs:
http://home.earthlink.net/~bazillion/design.html" onclick="window.open(this.href);return false;
by ninthinning
28 Mar 2011, 05:35
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

snsarms, I plan to use your weighting method right away but will need more details. I have been using lead tape but that is a temporary solution. Your weight idea is practical and immediately applicable and will add a huge safety margin for magnum loads, real genius, good job. All the bullets I shoo...
by ninthinning
28 Mar 2011, 04:44
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 blown to hell
Replies: 43
Views: 31571

Re: PS90 blown to hell

Thanks again both of you for posting these events. Would wrapping the magazines in gorilla duct tape reduce the flying shrapnel or make things worse? iFire, Thanks for the powder volume/weight discussion. Dave O, amazing you thought to put a glove over the magazine. What bullet type/brand, bullet we...
by ninthinning
24 Mar 2011, 14:12
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 blown to hell
Replies: 43
Views: 31571

Re: PS90 blown to hell

Sorry to read this. What type of cartridge were you shooting? What was the powder and charge? What is your reloading style for this round? Pictures of the gun would be helpful. Did you have a squib or too much powder?
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by ninthinning
24 Feb 2011, 14:31
Forum: 5.7x28 Reloading
Topic: Which bullets for reloading the 5.7x28 round
Replies: 4
Views: 6122

Re: Which bullets for reloading the 5.7x28 round

This is one of the best. Exits the barrel quickly. Second choice is 195 projectile pulled down from factory ammo.
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http://www.eliteammunition.net/catalog/ ... 334526.htm" onclick="window.open(this.href);return false;
by ninthinning
06 Feb 2011, 06:52
Forum: Reloading
Topic: Trident 62 grain 223 REM or These new phones are amazing!
Replies: 14
Views: 14991

Re: Trident 62 grain 223 REM or These new phones are amazing

"Do you want to test a batch of our Bench .308 loaded with our newly designed bullet?" Yes. http://i37.photobucket.com/albums/e90/ninthinning/2011-02-05_12-00-16_468.jpg The rifle range has a great view of the Sheep mountains. http://i37.photobucket.com/albums/e90/ninthinning/2011-02-05_11-58-41_775...
by ninthinning
05 Feb 2011, 21:38
Forum: Reloading
Topic: Trident 62 grain 223 REM or These new phones are amazing!
Replies: 14
Views: 14991

Re: Trident 62 grain 223 REM or These new phones are amazing

I brought my AR 15 with the 18" 1:7 twist barrel to the Clark County Shooting Park in Nevada. The shooting park is a world class gun range located north of Las Vegas at the foot of the Sheep mountains. 100 rounds each of EA Trident 62 grain brass banded bullets and 77 grain Sierra HPBT bullets were ...
by ninthinning
03 Jan 2011, 05:40
Forum: 5.7x28 Reloading
Topic: iFire's PS90 Load Data
Replies: 59
Views: 127278

Re: FF's 5.7x28mm Load Data

Thank you for posting photos of your PS90. When firing powerful rounds with my PS90 the magazine did not pop out on each shot. When there was just one round in the magazine for test shots the magazine did not pop. This may have been because the gases flowed into the empty magazine space and reduced ...
by ninthinning
02 Jan 2011, 14:06
Forum: 5.7x28 Reloading
Topic: iFire's PS90 Load Data
Replies: 59
Views: 127278

Re: FF's 5.7x28mm Load Data

First class report. I am trying to understand why your magazine does not pop up shooting these powerful rounds. What is your barrel length? Would you post a picture of your hammer group? What color is the hammer? Does your group have an auto sear?
Thank you,
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by ninthinning
13 Dec 2010, 14:29
Forum: Reloading
Topic: Trident 62 grain 223 REM or These new phones are amazing!
Replies: 14
Views: 14991

Re: Trident 62 grain 223 REM or These new phones are amazing

Romer, That app is a great addition to this project. A++. I put the data for the trident bullet into the program and now I have a whole series of beautiful color graphs on my phone. The app ties right into the GPS for location and elevation and the weather service for humidity data. Amazing. The tra...
by ninthinning
13 Dec 2010, 10:20
Forum: Reloading
Topic: Trident 62 grain 223 REM or These new phones are amazing!
Replies: 14
Views: 14991

Re: Trident 62 grain 223 REM or These new phones are amazing

Blue, I have shot a bunch of these bullets through my AR15 with 1:7 twist and 18" barrel. These bullets through that gun are very accurate, more accurate than anything I have shot, including the Sierra 77 grain HPBT cannelure. I cannot get over the power of this new phone. When I shoot up a bunch of...
by ninthinning
13 Dec 2010, 09:56
Forum: Reloading
Topic: Trident 62 grain 223 REM or These new phones are amazing!
Replies: 14
Views: 14991

Trident 62 grain 223 REM or These new phones are amazing!

These new phones are amazing! I just up-graded to an android phone and am really impressed. I feel a little like a caveman using alien technology. This phone has an internet browser, GPS, video camera, flashlight, compass, stop-watch, RPN calculator and hundreds of other programs called apps. Apps a...
by ninthinning
13 Dec 2010, 07:40
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Accuracy
Replies: 2
Views: 3413

Re: PS90 Accuracy

I was able to shoot MOA at 50 yards using Barnes banded solids.
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by ninthinning
12 Dec 2010, 08:35
Forum: 5.7x28 Reloading
Topic: Crazy idea - wildcating the 5.7x28 to .204 caliber?
Replies: 7
Views: 9024

Re: Crazy idea - wildcating the 5.7x28 to .204 caliber?

Vibe,

Thanks, I read this thread with this link. http://www.saubier.com/forum/showthread.php?t=8882" onclick="window.open(this.href);return false;.

9th
by ninthinning
12 Dec 2010, 07:14
Forum: 5.7x28 Reloading
Topic: favorite powders?
Replies: 5
Views: 5616

Re: favorite powders?

Your powder charge depends on the length of the barrel. The 5.7 pistol with its 4" barrel can fire rounds with much more powder than the PS90 with a 16" barrel. I load my rounds for a PS90 with an 18" barrel and a weighted bolt. This allows all my loads to be fired in PS90 with 16" barrel and the Fi...
by ninthinning
09 Dec 2010, 06:54
Forum: 5.7x28 Reloading
Topic: Crazy idea - wildcating the 5.7x28 to .204 caliber?
Replies: 7
Views: 9024

Re: Crazy idea - wildcating the 5.7x28 to .204 caliber?

Great idea. I like the 17 REM. It would be great to have a .17 x 28 barrel.
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by ninthinning
10 Nov 2010, 13:50
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Feast your eyes on this (CMMG .22LR conversion for PS90/P90)
Replies: 16
Views: 10092

Re: Feast your eyes on this.

The CMMG .22 AR15 version looks similar and runs like a Swiss watch. The 5.7 barrel diameter and the .22 lr barrel diameter are slightly different. Expect a little less accuracy with the .22 round.
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by ninthinning
24 Oct 2010, 03:28
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Review by Jeepgunner.com
Replies: 20
Views: 13881

Re: PS90 Review by Jeepgunner.com

JeepGunner, Some good information for improving your PS90 can be found here. Look into the reloading section run by Grantness and you will find some potent rounds. The PS90 really shines when combined with hand loaded ammo. Elite ammunition makes innovative projectiles and ammunition in 5.7 that bri...
by ninthinning
22 Oct 2010, 16:35
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Review by Jeepgunner.com
Replies: 20
Views: 13881

Re: PS90 Review by Jeepgunner.com

Thanks for the link. That is one of the best articles on the PS90 and I love old jeeps too.
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by ninthinning
20 Oct 2010, 17:45
Forum: PS90 & Other 5.7x28mm Rifles
Topic: AR-57 in the Netherlands
Replies: 21
Views: 15048

Re: AR-57 in the Netherlands

Sounds like you are heading in the right direction. The maximum load might be between 5.6 and 5.9 grains. Once you get there the dent on the case should go away. If the dents do not go away you can try a weaker buffer spring and that will allow the bolt to remain back long enough for the shell to es...
by ninthinning
19 Oct 2010, 03:57
Forum: PS90 & Other 5.7x28mm Rifles
Topic: AR-57 in the Netherlands
Replies: 21
Views: 15048

Re: AR-57 in the Netherlands

You are using too much powder for this round and that bullet weight. The bolt is returning to soon and hitting the cases causing the dent. Try starting at a lesser amount of powder then work your way up. Start at 5.2 grains then go up from there. Use a chronograph so you know where you are.
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by ninthinning
08 Oct 2010, 11:06
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

The stock gun is 26.25". The gun with the 18" barrel is also 26.25" without the brake. With the brake it is 28.25" You could have a 20" barrel made and add a brake, you would then have a gun 30.25" long. You would have to weight the bolt to compensate for the additional barrel length. The increase i...
by ninthinning
13 Sep 2010, 17:56
Forum: Lounge
Topic: Nano-Oil Giveaway Game 003 20100913
Replies: 50
Views: 30325

Re: Nano-Oil Giveaway Game 003 20100913

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by ninthinning
13 Sep 2010, 05:06
Forum: PS90 & Other 5.7x28mm Rifles
Topic: P-90
Replies: 11
Views: 7690

Re: P-90

I always feel like I'm being patriotic when I visit Las Vegas. That new rifle range near the sheep mountains is world class. I would visit North Las Vegas just to shoot at that range. There is also an excellent Pleistocene fossil bed that contains mastodon fossils a few miles away. One of the high p...
by ninthinning
11 Sep 2010, 04:56
Forum: PS90 & Other 5.7x28mm Rifles
Topic: P-90
Replies: 11
Views: 7690

Re: P-90

You were mayor of Las Vegas? I love Las Vegas. The geology around the city is world class.
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by ninthinning
05 Sep 2010, 05:28
Forum: FiveseveN handguns
Topic: Yipee! Got my ammo boxes from EA
Replies: 18
Views: 13070

Re: Yipee! Got my ammo boxes from EA

b4odcmpc, The problem is your PS90. I have two PS90s. The older model shot white box 195 with no jams or popped up magazine. The newer model PS90 popped the magazine every 10th round when using white box 195. Today I shoot all factory ammo and reloads using a weighted bolt. I do not feel comfortable...
by ninthinning
02 Sep 2010, 14:40
Forum: 5.7x28 Reloading
Topic: blue box 27 gr ss195lf retunned?
Replies: 6
Views: 6195

Re: blue box 27 gr ss195lf retunned?

They changed powder to reduce the gas blow back in the PS90. White box 195 would often cause the magazine to pop up and the gun would jam. The re-tuned blue box 195 is weaker and has less gas blow back and is balanced for the PS90 with the 16 inch barrel.
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by ninthinning
17 Aug 2010, 16:46
Forum: 5.7x28 Reloading
Topic: blue box 27 gr ss195lf retunned?
Replies: 6
Views: 6195

Re: blue box 27 gr ss195lf retunned?

skyweasel,
I observed the same powder weights that you observed. I weighed the bullets and they weigh 7.3 grains. The powder in the factory rounds makes good fertilizer when applied sparsely to the lawn or garden.
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by ninthinning
13 Aug 2010, 03:39
Forum: 5.7x28 Reloading
Topic: Barnes 45 gr. TSX & Blue Dot??
Replies: 4
Views: 4524

Re: Barnes 45 gr. TSX & Blue Dot??

If you are loading 45 grain bullets for stock PS90, start at 5.2 grains of Blue Dot and you may be able to work up to 5.9 grains.
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by ninthinning
22 Jul 2010, 04:17
Forum: Factory Loaded Ammunition
Topic: Can you trust SS197?
Replies: 76
Views: 47413

Re: Can you trust SS197?

For the purpose of testing my PS90 with factory ammunition 6 boxes of 197 were purchased . One hundred rounds were pulled down and the powder from every 10th cartridge was weighed and every powder measure weighed the same. All the rounds fired cycled. The PS90 was tested for accuracy at 50 yards usi...
by ninthinning
21 Jul 2010, 10:05
Forum: 5.7x28 Reloading
Topic: 35gr nosler ballistic tip Edit:Important Brass Information
Replies: 22
Views: 69356

Re: 35gr nosler ballistic tip

I have loaded them and they are pretty accurate. http://www.fivesevenforum.com/viewtopic.php?f=19&t=7896" onclick="window.open(this.href);return false; I started at 6.6 grains and that is too much for stock PS90. Looks like 5.9 to 6.1 would be good starting load. Good luck and post your results. You...
by ninthinning
21 Jul 2010, 02:53
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS 90 Barrel Shroud
Replies: 24
Views: 22183

Re: PS 90 Barrel Shroud

Anything attached to the shroud affects accuracy a lot. The barrel moves when shooting. When a round is fired the barrel and the bolt move rearward together for about 0.75 mm. This is important for cycling. I do not know if reliability is affected but it might be. http://i37.photobucket.com/albums/e...
by ninthinning
19 Jul 2010, 16:30
Forum: 5.7x28 Reloading
Topic: Misfires on reloads
Replies: 15
Views: 12220

Re: Misfires on reloads

What primers are you using? Did you use the same primers both times? Looks like a good load. You might need to bend your hammer spring to increase the power.

Image
Bend your hammer spring to look like the bottom one.
by ninthinning
19 Jul 2010, 13:23
Forum: 5.7x28 Reloading
Topic: Q about bullet component weights
Replies: 16
Views: 8441

Re: Q about bullet component weights

Seriously, the man has great ideas.
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by ninthinning
19 Jul 2010, 12:58
Forum: PS90 & Other 5.7x28mm Rifles
Topic: 5.7 Bolt Rifle Velocities
Replies: 18
Views: 11105

Re: 5.7 Bolt Rifle Velocities

sendelweck, Welcome. Your work sounds very interesting. What do you think is the optimum barrel length for a 5.7 x 28 round? Those are fine groups using factory ammo. It is good to see these rounds are so accurate. I have seen the same groupings as you using factory ammo. The 197 blue tip is super a...
by ninthinning
19 Jul 2010, 12:49
Forum: 5.7x28 Reloading
Topic: 55gr fmj and Alliant Blue Dot
Replies: 10
Views: 9439

Re: 55gr fmj and Alliant Blue Dot

VeTTeMaNC486, You may be close to the upper limits of the PS90 design using a weighted bolt with the loads you describe using six grains of Blue Dot. My goal was to shoot 45 grain Barnes banded solid bullets using 6.2 grains of Blue Dot magnum pistol powder. You are getting close to the upper limit ...
by ninthinning
18 Jul 2010, 08:30
Forum: 5.7x28 Reloading
Topic: 55gr fmj and Alliant Blue Dot
Replies: 10
Views: 9439

Re: 55gr fmj and Alliant Blue Dot

Here are additional photos of lead tape application you asked for:

Image
Image
Image
by ninthinning
18 Jul 2010, 08:26
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

I have fired around a thousand rounds with the lead tape weighted bolt, left in photo. The tape is sticking well with no movement. The bolt on the right has about one hundred rounds. The well used bolt on the left shows some pitting. http://i37.photobucket.com/albums/e90/ninthinning/DSC02721.jpg htt...
by ninthinning
17 Jul 2010, 20:15
Forum: 5.7x28 Reloading
Topic: 55gr fmj and Alliant Blue Dot
Replies: 10
Views: 9439

Re: 55gr fmj and Alliant Blue Dot

VeTTeMaNC486, 55 grains is pretty heavy bullet for PS90. It was designed to shoot a 28 - 32 grain bullet but can shoot a little bit heavier bullet. The lead tape applied to your bolt should help a lot. I will not shoot any rounds, even factory ammo, from my PS90 without a bolt with 40 to 42 grams of...
by ninthinning
15 Jul 2010, 04:03
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

moa, I have settled on shooting the gun with no brake, as anything touching the barrel shroud affects accuracy. The kick is still light and the flash is awesome. She shoots reloaded 195 ammo over 3,000 fps. At 50 yards she shoots sub-MOA all day long. Barnes 45 grain banded solids are the most accur...
by ninthinning
06 Jul 2010, 10:31
Forum: 5.7x28 Reloading
Topic: Attention 5.7x28 Reloaders
Replies: 30
Views: 21966

Re: Attention 5.7x28 Reloaders

Great idea!
by ninthinning
01 Jul 2010, 02:51
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Shimming a Halo tri-rail
Replies: 7
Views: 6097

Re: Shimming a Halo tri-rail

Turns out I was too optimistic using a little lead tape. That was OK for the 25 yard home range but after getting into the field the 100 yard aim was way off. In the end I got the gun shooting great at 100 yards but had to shim it up a bit more. A screw was installed in the gun and then filed away a...
by ninthinning
29 Jun 2010, 04:21
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Shimming a Halo tri-rail
Replies: 7
Views: 6097

Re: Shimming a Halo tri-rail

It is an odd looking duck but it is very easy to shoot well. Here is an AR15 with the same length barrel showing the stock and scope spacing are similar.

Image
by ninthinning
28 Jun 2010, 16:10
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Shimming a Halo tri-rail
Replies: 7
Views: 6097

Shimming a Halo tri-rail

Installing a Halo Manufacturing tri-rail requires a little shimming to get the rail perfectly level. I used three layers of lead golf tape to achieve a good level rail. http://i37.photobucket.com/albums/e90/ninthinning/DSC02519.jpg Three layers of lead tape here. http://i37.photobucket.com/albums/e9...
by ninthinning
20 Jun 2010, 08:28
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Elite Ammo Problem?
Replies: 6
Views: 5441

Re: Elite Ammo Problem?

I added lead tape to my bolt when FN 195LF popped the magazine.
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viewtopic.php?f=16&t=7897" onclick="window.open(this.href);return false;
by ninthinning
12 Jun 2010, 03:21
Forum: 5.7x28 Reloading
Topic: PS90 Velocities - 40gr Hornady V-Max - Blue Dot - 2
Replies: 6
Views: 6471

Re: PS90 Velocities - 40gr Hornady V-Max - Blue Dot - 2

"That one 7.0gr shot really freaked me out and consequently makes me want to err a little further on the side of safety and longevity." MartinG, What was it about that round that made you worry? What did the PS90 do to cause you concern?
Thank you,
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by ninthinning
10 Jun 2010, 08:41
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

I have had a chance to shoot the gun with the 18" barrel and am very happy with the results.
Here you see the improved gun and stock gun side by side.
Image
by ninthinning
08 Jun 2010, 07:47
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

Nice pictures. That might pretty simple to turn into a light two stage semi-automatic trigger. That would really increase the accuracy.
Thank you,
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by ninthinning
07 Jun 2010, 19:02
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

drcoffee, That is very interesting work you are doing. I am planning on buying an FS2000 but I am hesitant after reading the reviews on the web. It sounds like the trigger is a real kludge. I have seen pictures of the hammer group and it looks like the PS90 hammer group. The problem I see is the aut...
by ninthinning
07 Jun 2010, 04:02
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

"I wonder if they're ever going to make a rifle that is the same design as the p90 (magazine, ejection, etc) that is a higher caliber... or have they already?" freelienr, my vote would be for a 50 Beowulf. Its not often when a new gun design is introduced to the American public and succeeds, and the...
by ninthinning
06 Jun 2010, 10:31
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

This new 18" barrel likes light bullets between 28 and 32 grains. Shot some pulled down 195. The spent brass looks very good, clean and well formed. Velocity in feet per second. KE=600 ft lbs 3112 3107 3118 3077 3085 3175 3098 http://i37.photobucket.com/albums/e90/ninthinning/DSC02396-1.jpg Looks li...
by ninthinning
06 Jun 2010, 08:43
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Here is a stock PS90 receiver with the stock barrel parts laid out next to a tape measure.

Image

Image

Image
by ninthinning
06 Jun 2010, 02:53
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

"I think you will find that through shooting the gun, carbon and such has effectively "welded" the flash hider and barrel together. Which is why I noted earlier that you will need to use some muscle to break it loose." jmz5, I forgot to mention, I heated the barrel with a propane torch and after tha...
by ninthinning
05 Jun 2010, 13:58
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Shot a good test round through a chronograph using stock 16" barrel and new 18" barrel. Increase of almost 200 fps with this round through 18" barrel: Barnes 36 gr varmint grenade 0.224 dia. 22 cal, 6.2 gr Blue Dot Powder CCI 400 small rifle primer Used Brass OAL 1.582 in 18" barrel 16.73" rifling 2...
by ninthinning
05 Jun 2010, 08:08
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

freelienr,
Thanks for the heads up about using a dowel. I followed your advice and surly saved myself some time.
9th
by ninthinning
05 Jun 2010, 07:53
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Went out back and shot ten rounds through the new barrel. Ran well and the spent cases look normal. Feels like a little harder kick.
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by ninthinning
05 Jun 2010, 07:10
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

http://i37.photobucket.com/albums/e90/ninthinning/DSC02361-1.jpg Grip the muzzle brake and turn in a clock wise direction to loosen. It takes a good effort to break the muzzle brake free. http://i37.photobucket.com/albums/e90/ninthinning/DSC02362-1.jpg I gripped the muzzle brake with pliers. http:/...
by ninthinning
05 Jun 2010, 07:03
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Turned out I was not trying hard enough. The muzzle brake is separate from the shroud. Once I got the old barrel out the new one installed in about 5 minutes.
by ninthinning
05 Jun 2010, 05:56
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Drilled out the pin and now I have the barrel rotating inside the shroud. How is the muzzle brake attached to the barrel? The shroud and muzzle brake are two separate pieces. The barrel is loose from the shroud but the muzzle brake is firmly attached to the barrel. Bought the perfect 15mm box wrench...
by ninthinning
04 Jun 2010, 08:14
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

jmz5,
I just finished reading the barrel removal post, great job there. Thanks for your advice. I have it clamped in a barrel vice and am looking for the right bit and also preparing to thin down a 15mm wrench.
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by ninthinning
04 Jun 2010, 07:20
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

Re: PS90 18" barrel

Received this new barrel today. Step one is to drill out the pin on the stock PS90. Looks like it will add about 1" to the finished over all length. Planning to install a standard PS90 muzzle brake. This gives two additional inches of rifling. http://i37.photobucket.com/albums/e90/ninthinning/DSC023...
by ninthinning
02 Jun 2010, 03:39
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification using tungsten bar

not sure if this will help
by ninthinning
28 May 2010, 14:45
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

I disassembled the bolt on my stock PS90 so I could cut the bolt return spring down a little and at the same time measured the bounce weight. It is 25.97 mm tall by 14.17 mm wide. The rod hole diameter is 7.91 mm. The mass of the weight is 47.16 grams. A density of 16.9 g/cc is close to the density ...
by ninthinning
28 May 2010, 10:29
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

Wow! These are very expensive guns to come with such a poor trigger.
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by ninthinning
27 May 2010, 05:03
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

I have not seen a FS2000 in person. Take your gun apart and take some good pictures.
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by ninthinning
27 May 2010, 04:14
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

I went to the Wiki and the picture is helpful and encouraging. If someone wants to take apart the gun so I can get a look inside that would be good. If you do take pictures, focus on the way the trigger is linked to the hammer group. Does this gun use a rod or rods to connect the trigger to the hamm...
by ninthinning
27 May 2010, 04:05
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

It looks like a trigger job would be possible. The hammer group is almost identical to the one in the PS90. The big difference is the PS90 comes with an auto sear in the front of the hammer group. It appears the FS2000 had an auto sear in front of the hammer but it has been removed at the factory. T...
by ninthinning
26 May 2010, 16:44
Forum: FiveseveN handguns
Topic: Routine Maintenance
Replies: 40
Views: 22318

Re: Routine Maintenance

I have been tempted to put mine in the dish washer, regular cycle, with the other pots and pans.
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by ninthinning
26 May 2010, 16:39
Forum: Factory Loaded Ammunition
Topic: Who wants White box 195 for $20 a box
Replies: 21
Views: 14065

Re: Who wants White box 195 for $20 a box

I found some last year and bought 20 boxes. Shot it all. Ammo never lasts long for me.
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by ninthinning
26 May 2010, 16:36
Forum: Factory Loaded Ammunition
Topic: Who wants White box 195 for $20 a box
Replies: 21
Views: 14065

Re: Who wants White box 195 for $20 a box

OK, I'll get in the queue.
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by ninthinning
26 May 2010, 15:17
Forum: Factory Loaded Ammunition
Topic: Ammunition questions
Replies: 17
Views: 12870

Re: Ammunition questions

"I got lost somewhere! What is your opinion of the blue box SS197SR? You mentioned that the blue box has been watered down, but you were talking of a number other than 197. What I have is the number I gave and it has a blue tip. What is your opinion on this round? My apologies if you already stated ...
by ninthinning
26 May 2010, 14:52
Forum: Factory Loaded Ammunition
Topic: Who wants White box 195 for $20 a box
Replies: 21
Views: 14065

Re: Who wants White box 195 for $20 a box

I could use two boxes for pull downs. Sounds like your gun guy is a fool. I call dibbs on next months allocation.
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by ninthinning
26 May 2010, 05:38
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 18" barrel
Replies: 39
Views: 32166

PS90 18" barrel

Well, I finally ordered an 18" barrel for my PS90. I plan to make a photo essay on the how to of barrel changing. I have seen this done before so any advice on this project would be greatly appreciated. The procedure seems pretty straight forward. Are there any pit falls I should be aware of before ...
by ninthinning
25 May 2010, 10:15
Forum: FN Tactical Rifles
Topic: FS 2000 Trigger Pull
Replies: 53
Views: 84809

Re: FS 2000 Trigger Pull

I have been looking over the web for information on this gun. Looks interesting and I am considering purchasing one. It sounds like the trigger on this gun is as firm as the trigger on the PS90. Has anyone shot one of these for accuracy? Will it shoot 1 MOA at 100 yards? There are some pictures of t...
by ninthinning
24 May 2010, 10:54
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Promoted Pawn still in business?
Replies: 5
Views: 6555

Re: Promoted Pawn still in business?

I have recently had good business dealings with this company.
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by ninthinning
23 May 2010, 16:43
Forum: Classifieds Feedback
Topic: satellitedr3ams
Replies: 48
Views: 76693

Re: satellitedr3ams

Excellent deal. Great person to do business with.
Thank you!
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by ninthinning
23 May 2010, 05:44
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

Well done gentlemen, I have learned a lot from your contribution to this discussion. I had a chance to shoot a hunting round in my PS90 with the lead tape that weighs 42 grams on the bolt . Grantness suggested a round like this to clone the 197 factory round. This round is an excellent choice for ha...
by ninthinning
22 May 2010, 11:40
Forum: 5.7x28 Reloading
Topic: PS90 Velocities Using 40gr Hornady V-Max and Blue Dot Powder
Replies: 22
Views: 17077

Re: PS90 Velocities Using 40gr Hornady V-Max and Blue Dot Po

What part is the display head? Nice data.
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by ninthinning
21 May 2010, 14:48
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Flash Hiders
Replies: 2
Views: 3128

Re: Flash Hiders

Yes
by ninthinning
21 May 2010, 02:25
Forum: 5.7x28 Reloading
Topic: 35 Grain Nosler Lead Free Ballistic Tip
Replies: 12
Views: 10452

Re: 35 Grain Nosler Lead Free Ballistic Tip

Forest Fire, I bought some 35 Grain Nosler Lead Free Ballistic Tip bullets and loaded them using Blue Dot magnum pistol powder. The loads started at 6.2 grains of powder and worked up to 7.2 grains. 6.6 grains seems to me to be the best load for a stock PS90. At 6.9 grains two of the primers were bl...
by ninthinning
20 May 2010, 10:18
Forum: Factory Loaded Ammunition
Topic: Blue Box SS195
Replies: 23
Views: 16191

Re: Blue Box SS195

Just a guess here but it may be they de-tuned 195 ammo because it would occasionally pop the magazine out of the PS90 and cause a jam. It probably runs fine in the guns with the original short barrels but when they went to the longer barrel the added pressure was more than the gun design could handl...
by ninthinning
19 May 2010, 12:16
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

OK I pealed the tape off the upper bolt and weighed it on my RCBS powder scale. It weighs 411 grains, or 26.64 grams. So the original reported weight was close. I can also report the tape is difficult to peal off. I then put new tape on the bolt and was able to put 42 grams of tape on the bolt. This...
by ninthinning
19 May 2010, 12:07
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

The scale I have been using is giving inaccurate weight and the reported 0.8 ounces is probably in error. I plan to weigh the bolt on a good scale as soon as possible. Thank you for your calculation and I would be grateful if you would do it again when I get a correct weight for the lead. :facepalm:...
by ninthinning
19 May 2010, 10:29
Forum: PS90 & Other 5.7x28mm Rifles
Topic: High power bolt modification
Replies: 38
Views: 30428

Re: High power bolt modification

I have had a chance to work with the heavy bolt and am very encouraged by the results. The guns ability to handle powerful loads increases with increased bolt weight. My first example of taping in the photo above was done with little regard to tape placement. In order to maximize the weight, the tap...
by ninthinning
19 May 2010, 03:30
Forum: PS90 & Other 5.7x28mm Rifles
Topic: What is the thread size for p90 muzzel brake.
Replies: 9
Views: 6650

Re: What is the thread size for p90 muzzel brake.

I like the 5.7 x 28 for hunting small varmints where shots are less than 50 yards. It would be great to have a barrel with four more inches of rifling. Bullets could attain higher velocities with improved accuracy. Here is a link to the barrel I am thinking of buying. http://www.hi-desertdog.com/ind...
by ninthinning
18 May 2010, 22:30
Forum: PS90 & Other 5.7x28mm Rifles
Topic: What is the thread size for p90 muzzel brake.
Replies: 9
Views: 6650

Re: What is the thread size for p90 muzzel brake.

Sathinas,
I wanted to install an 18" barrel on my PS90 for long range target shooting but it turned out to be to expensive. High Desertdog has what I wanted but it was $350. Maybe in the future.
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by ninthinning
15 May 2010, 14:18
Forum: FiveseveN handguns
Topic: Hope I didn't break my FNH 5-7 already...
Replies: 27
Views: 14102

Re: Hope I didn't break my FNH 5-7 already...

Pictures would help. You may have a primer jammed in the mechanism. Take it apart and look inside.
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by ninthinning
14 May 2010, 12:16
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Proof mark (C.I.P.) on PS90?
Replies: 9
Views: 11385

Re: Proof mark (C.I.P.) on PS90?

I see it on my 5.7 but do not see a proof mark on the PS90.
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