Search found 12 matches

by Ppostma1
17 Feb 2015, 14:05
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Just how hot is the barrel supposed to get?
Replies: 16
Views: 1528

Re: PS90 Just how hot is the barrel supposed to get?

Thank you for clearing that up Stitches! Hopefully I have ammo names/brands figured out now. I just went out with a friend this afternoon and we had it at 250f by rapid fire 35 rounds. By Friday I'll get a temp sensor on it (standard thermo probe) and get it on video as it is very easy to reproduce....
by Ppostma1
16 Feb 2015, 21:19
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Just how hot is the barrel supposed to get?
Replies: 16
Views: 1528

Re: PS90 Just how hot is the barrel supposed to get?

I originally learned there was a SS195 40gr FMJ and an SS195LF 28gr all copper, as well as a SS197SR for sale to civilian markets. Some people keep telling me AE 40Gr TMJ is rebranded SS195 (I don't believe this) Some say AE is the replacement for SS195 in certain markets (I do believe this) Some pe...
by Ppostma1
14 Feb 2015, 19:59
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Just how hot is the barrel supposed to get?
Replies: 16
Views: 1528

Re: PS90 Just how hot is the barrel supposed to get?

Are you able to get the real SS195 here in Michigan? I have only been able to get the AE variant. Read online that its subcontracted and FHN won't distribute or compete in the same areas AE is.
by Ppostma1
12 Feb 2015, 09:59
Forum: 5.7x28 Reloading
Topic: How is everyone priming?
Replies: 9
Views: 1203

Re: How is everyone priming?

CCI 400s, and Remington 6.5 and 7.5 are nearly identical. The only difference is the focus on mixture consistency. The CCI 500's are actually a slight bit shorter in depth. When fitting flush they leave a gap behind the primer, but as I look at the differences, its too small for grains to fall into ...
by Ppostma1
11 Feb 2015, 22:49
Forum: 5.7x28 Reloading
Topic: How is everyone priming?
Replies: 9
Views: 1203

Re: How is everyone priming?

I have to ask, late as usual. Which primers are you using? info: CCI small rifle (400) works. CCI Small magnum pistol (550) are identical with 5% more load but might have too hard of sides to seat well. CCI small pistol (500) are the same diameter, but shallower depth so they leave a gap and allow p...
by Ppostma1
11 Feb 2015, 22:39
Forum: 5.7x28 Reloading
Topic: To summarize all reloading info, the shellacking and why
Replies: 0
Views: 2153

To summarize all reloading info, the shellacking and why

I have been going through this forum and finding bits and pieces of this new concept to me, and am trying to put it all together to understand what and why this is done. Please correct me if I am wrong. I am going into detail to understand and help others comprehend what the issue is. Yes, I enginee...
by Ppostma1
11 Feb 2015, 21:45
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 HD Bolt Rate Reducers.
Replies: 58
Views: 14598

Re: PS90 HD Bolt Rate Reducers.

This looks like a great idea! If the weight is increased, the spring tension can also be increased to slow bolt rate. Just shim the spring up a 1/4" or so
by Ppostma1
11 Feb 2015, 21:39
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Just how hot is the barrel supposed to get?
Replies: 16
Views: 1528

Re: PS90 Just how hot is the barrel supposed to get?

Running American Eagle 195 variant for sighting.

I presume if I smoked oil that it was at least 350F. I have one and can check the next time I heat it up. I have been using the MFIAP barrel shroud to cool it while I varmint hunt and it has worked great.
by Ppostma1
11 Feb 2015, 17:04
Forum: PS90 & Other 5.7x28mm Rifles
Topic: Look What Finally Followed Me Home.
Replies: 22
Views: 3552

Re: Look What Finally Followed Me Home.

Very nice. And it looks like someone has more ammo than 3 of my local suppliers combined
by Ppostma1
11 Feb 2015, 16:22
Forum: PS90 & Other 5.7x28mm Rifles
Topic: PS90 Just how hot is the barrel supposed to get?
Replies: 16
Views: 1528

PS90 Just how hot is the barrel supposed to get?

pre-info: I have one in SBR back down to 10.3" barrel and bought a second PS90 for the full length barrel, mounted a long range scope for coyote ... that's where my problems started. I got a good deal on it for price on GunBroker. Turns out it was the dealers test model and may have been used extens...
by Ppostma1
11 Feb 2015, 15:44
Forum: 5.7x28 Reloading
Topic: Is there any end in sight for the powder shortage?
Replies: 14
Views: 2308

Re: Is there any end in sight for the powder shortage?

Just chatted with the powder suppliers. They are catching up on back orders. I have been trying to get some for 4 months, kept shopping around and finally hit up one guy selling out of his radiator shop. Bloke was loaded, one case of -3 brands-X-each of their lines-. I got 2 lbs and I'm back to work...