Grant's Loads

Reloading info for the 5.7x28mm

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Grantness
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Grant's Loads

Post by Grantness » 13 Jun 2011, 17:58

Ok guys... this has been locked away in the cage for a while and I thought it was about time for the public to have easy access :D

I went through and compiled all of the loads I've ever posted on this forum into one document. I decided it would be a lot more convenient for me than shuffling through pages and pages of handwritten notes. Then it occurred to me that it might be convenient for you guys too :) These are only the loads I have posted on the forum. Nothing new. I may at some point decide to add some of the ones I've kept off the forums... but for now, I think this will do.

45gr Barnes TSX : Trim 1.130”, OAL 1.556”

Accurate #7:
7.3gr avg: 1770 fps max 1780 fps
7.4gr avg: 1784 fps max 1804 fps
CCI #400 (cratering, flattening, and leakage [blue ring around outside])
7.5gr Avg: 1837fps Hi: 1857fps
*use sound judgment when working above 7.4gr wiht a 45gr bullet*
HS6: 6.0gr avg: 1740 fps max 1767 fps
Winchester Small Rifle Primers (some cratering)
True Blue: 5.9gr Avg: 1798fps Hi: 1816fps
6.0gr Avg: 1816 fps Hi: 1823 fps
6.1gr Avg: 1838 fps Hi: 1875fps
Accurate #7: 7.5gr Avg: 1837fps Hi: 1857fps
*use sound judgment when working above 7.4gr wiht a 45gr bullet*
HS7: 6.5gr avg: 1712 fps max 1727 fps
6.6gr avg: 1735 fps max 1789 fps
6.7gr avg: 1740.8 fps max 1771 fps
6.8gr avg: 1759 fps max 1782 fps
6.9gr avg: 1795 fps max 1796 fps (only 2 rounds in sample)
7.0gr Avg: 1795.3 fps Hi: 1846fps (only 4 in sample)
7.1gr Avg: 1807 fps Hi: 1851fps
7.2gr Avg: 1845 fps Hi: 1877fps
Trim 1.130 OAL 1.58 CCI #400 primer
7.7gr Avg: 1888 fps Max: 1902 fps
7.8gr Avg: 1902 fps Max: 1935 fps
Loads a little dirty. Nearing max loads.
True Blue: 6.5gr Avg: 1910.4 Max: 1926fps *50% had dents in the necks, but all performed normally. Rounds somewhat dirty. Dont use this load*
6.6gr Avg: 1930fps Max: 1950 *N=2* *3 out 5 had significant dents in the neck and performed poorly...so they were discarded from the sample. Loads very dirty. Cases trashed. I do not recommend using this load. Excess pressure warning signs evident*
These TB loads are approaching dangerous levels. Use this data at your own risk.

45gr Barnes Banded Solid. Trim 1.130 OAL 1.58 CCI #400 primer
Accurate #7: 7.5gr Avg: 1843 Max: 1857
True Blue: Trim 1.133" OAL 1.55" CCI 400 primers
5.9gr Avg: 1816
6.0gr Avg: 1831
6.1gr Avg: 1856
6.2gr Avg: 1863
6.3gr Avg: 1875
6.4gr Avg 1890fps
6.5gr Avg 1924.5fps
Starting to get dirty. Dented case necks. Case trasged. Primers showed flattening and cratering, but did not puncture or blow out. I did not care for the 6.5 loads.
45gr Barnes Banded Solid Trim 1.130 OAL 1.560
HS7: 7.2gr Avg: 1836 Max 1849
7.3gr Avg: 1845 Max 1861
7.3gr Avg: 1856 Max: 1888 (increased the sample size)
7.4gr Avg: 1867 Max: 1883
7.5gr Avg: 1889 Max: 1918
7.6gr: 1952
Trim: 1.135" COL: 1.56" Primer: CCI 400
HS7: 7.6gr Avg: 1927.5 fps
7.7gr Avg: 1952.5 fps
7.8gr: 1941 fps (only 1 round) <----Max?
7.9gr: Avg: 1960fps
8.1gr Avg: 1991 Lost primers at a rate of about 1/7. Dented case necks. Exceeds Max
8.2gr Avg: 2010 Max: 2029 Lost primers 50-60%. Dents. Significant smoke. Danger.

28gr SS195 Bullet: Trim 1.135 OAL 1.585 CCI#400 primer
True Blue: 6.7gr Avg: 2315 Max: 2343
HS7: Trim: 1.135" OAL: 1.580" CCI 400 primers
7.9gr Avg: 2185
8.0gr Avg: 2311
8.1gr Avg: 2320
8.2gr Avg: 2345
8.3gr Avg: 2351
8.4gr Avg: 2390fps Max: 2406 <----prob ought to be Max :laugh:
8.5gr Avg: 2405fps Max: 2433 <---Max load
OAL: 1.585" Virgin SS197 brass/primer
8.6gr: 2437fps <----Deep black cratering

Hodgdon Longshot:
40gr Nosler Ballistic Tip. Trim: 1.135" OAL: 1.1580" Virgin SS195 brass/primer.
5.1gr: 1715fps
5.2gr: 1733fps
5.3gr: 1749fps
5.4gr: 1775fps
5.5gr: 1783.75 fps
5.6gr: 1809.8fps
5.7gr: 1834fps
5.8gr: 1903fps max: 1924fps
5.9gr: 1917fps max: 1957fps
6.0gr: 1938fps max: 1969fps *CCI 400 Trim: 1.130" OAL: 1.5825"*
6.1gr: 1973fps max: 2005fps *SS197 brass/primer. Trim: 1.130"*
OAL: 1.5825"
MAX LOAD: 6.2gr: avg: 2001fps max: 2017 *SS197 brass/primer. Trim: 1.130"* flattening and shoulder movement*
6.3gr: avg: 1985fps max: 1999fps *SS197 brass/primer. 2 pierced primers, and one with deep black cratering. Sharp recoil and smoke* Danger

53gr HP FB Matchking Trim: 1.135" OAL: 1.585" Primer: CCI 400

5.3gr: 1527 fps
5.4gr: 1549 fps
5.5gr: 1608 fps
5.6gr: 1639 fps

No signs of overpressure. Will have to take charge a little higher next time.

28gr SS195 Bullet. Trim: 1.135" OAL: 1.580" Primer: CCI 400 Crimped w/ modified Lee FCD (insert=1.095")

6.5gr: 2273fps max:2339 :?: *max was excluded from average*
6.6gr: 2295fps
6.7gr: 2317fps
6.8gr: 2340fps max: 2379

I had quite a bit of spread on these loads. I cannot say for sure what caused this. 6.8gr did not exhibit any signs of overpressure although it is prob close to the Max. Case necks were getting a little dirty, but nothing unusual. Shoulder movement was normal. No smoke. No dents in the case necks. Some cratering and flattening of the primers. Im going to have to test some of these again to make sure of my numbers, but all in all I was very pleased w/ the results.


VV N105:
Powder: Vihtavuori N105 45gr BBS Bullet. Trim: 1.135" OAL: 1.56" +/- .005" Primer: CCI 400, WSR, Virgin SS195 primer

7.1gr: 1820fps avg. *WSR
7.2g: 1847fps avg. *CCI 400
7.3gr: 1864fps avg. *CCI 400
7.4cgr: 1880fps avg. *SS195 factory primer
7.5cgr 1913fps avg. *SS195 factory primer
7.6c gr 1927fps avg. *SS195 factory primer
40gr Nosler Ballistic Tip Trim: 1.135" OAL: 1.580" SS197 virgin brass/primer
7.9gr: 1881fps <-------compressed
8.0gr: 1904gr <-----compressed
8.1gr: 1916fps <-----compressed
8.2gr: 1927fps <----compressed


40gr Combined Technology Ballistic Silvertip Trim: 1.135" OAL: 1.580" SS197 virgin brass/primer.
all loads compressed
8.0gr: 1904.5fps
8.1gr: 1915fps
8.3gr: 1941fps
8.5gr: 1991fps
8.6gr: 2007fps
8.7gr: 2015fps
8.8gr: 2000fps
I tried some 45gr loads from 7.9-8.1gr Trim: 1.135" OAL: 1.565" but they none were any higher than the 7.5gr loads above. I also got a couple jams. Seems that the curve is plaining off... Too much compression seems to detract from velocity. Lots of inconsistencies

50gr Combined Technology Silvertip Trim: 1.135" OAL" 1.588" Virgin SS197 brass/primer
7.7gr: 1678fps
7.8gr: 1698fps

SinterFire loads:

Temp = ~45 degrees F
36gr SinterFire MTP bullet. Trim: 1.135" OAL: 1.585" CCI 400
True Blue: 6.2gr: 1905fps avg. Hi 1960 N=4

42gr SinterFire WTP. Trim 1.135" OALL 1.585" virgin SS195 brass/primer
True Blue: 5.8gr: 1794fps avg. Max 1811fps
5.9gr: 1829fps avg. Max: 1849fps N=4

45gr SinterFire WTP. Trim 1.135" OAL: 1.135" SS195 virgin brass/primer
True Blue
5.7gr: 1756 fps N=3
5.8gr: 1801fps avg. Max: 1826fps n=4

VV N350:

40gr Nosler ballistic tip. Trim: 1.130" OAL: 1.580" Primer: CCI 400

5.3gr: 1692 fps
5.5gr: 1728.25 fps
5.6gr: 1754.5 fps
5.7gr: 1783.25 fps
5.8gr: 1808.6 fps
5.9gr: 1831 fps
6.0gr: 1853 fps

No serious signs of pressure at 6gr. Flattened primers & a little bit of cratering. No dented case necks. Necks slightly dirty....but nothing to worry about. This powder seems to be fairly fast burning. Im thinking it would do well with lighter bullets like 36gr Varmint Grenade, 36gr Sinterfire, & 28gr SS195.
40gr Nosler Ballistic Tip. Trim: 1.135" OAL: 1.580" Winchester Small Pistol Magnum (WSPM) Primers

5.9gr: 1810 fps max: 1827 fps
6.0gr: 1840 fps N=2
6.1gr: 1834.75 fps max: 1844 fps
6.2gr: 1850 fps
6.3gr: 1873 fps
6.4gr: 1880 fps
6.5gr: 1881fps N=1

Not much incremental increase in velocity as you can see. Velocities were kinda all over the place. Didnt calculate SD, but its large. I noticed some flattened primers up at 6.4-6.5gr. A little extrusion around the firing pin....but still havent reached the max (close though). No dented case necks. Interestingly...from 6.3 onwards, empties were ejecting almost straight forward.

I used magnum pistol primers cause I figured they might work better w/ the extruded powder. Velocities for 5.9 and 6.0 were slightly lower than last time, but I didnt make my sample size very big for those two this time since I'd already shot those loads w/ the CCI 400s. These WSPM primers were silver not gold. Im not sure if there is any difference.

28gr SS195 projectile. Trim: 1.135" OAL: 1.580" Winchester Small Pistol Magnum (WSPM) Primers
6.5gr: 2133 N=1
6.6gr: 2129fps
6.7gr: 2175 fps
6.8gr: 2200 fps

Nowhere near the max yet. As I suspected, N350 is doing well w/ the lighter bullets. Unfortunately, I only threw together a small spread w/ the SS195 as almost an afterthought. Its gonna take another trip to determine the max. Again, SD prob quite high.

28gr SS195 Bullet. Trim: 1.135" OAL: 1.580" Primer: CCI 400

6.9c gr: 2151.2 fps
7.0c gr: 2184 fps
7.1c gr: 2210 fps
7.2c gr: 2203 fps :?:
7.3c gr: 2235 fps
7.4c gr: 2242 fps
7.5c gr: 2275 fps Max: 2287 fps

No signs of overpressure on any of these loads. Once I got over 7gr it became nearly impossible to catch the cases w/ my brass catcher because they were ejecting almost straight forwards. I was still able to tell which ones I had just fired by picking them up and feeling if they were hot. Not much shoulder movement. Primers looked fine.

It'd be impractical to charge much higher than 7.5gr (unless you increase trim to ~1.140"). Loads were highly compressed w/ the long SS195 bullet. Shorter, light bullets like the 30gr Berger, 30&35gr Vmax, 34gr Dogtown, and 36gr Sinterfires and Varmint Grenades might be good choices for this powder.

Looks like the Small Pistol Magnum Primers I used last time did make a difference after all :?:

VVN350 subsonic trial:
I took some 45gr Sinterfires (@ OAL: 1.560" to reduce case capacity) from 4.7gr down to 3.8gr this evening (the closest reference I had was 5.3gr w/ a 40gr Nosler @ 1690fps). I know you're thinking, why a 45gr bullet? Well, Sinterfires are very long for their weights and correspondingly have quite a bit of bearing surface. This, along with other factors makes them slower than most jacketed bullets of the same weight. VVN350 has quite a large volume per grain (.0977gr/cm^3 off the top of my head) compared to True Blue (.06838gr/cm^3). Its also a single base extruded powder, which should mean it burns more easily. I figured, I'd see if I could make a subsonic round w/ it. No chorno as it was night time; I was just checking for functionality. All rounds cycled. No bullet jams (checked after each shot). Cases were extremely clean w/ little shoulder movement. My barrel was very clean as well...a good sign!

The primers on 4.7 down to about 4.2 looked normal. At 4.1gr down to 3.8gr the firing pin mark began to look very small, dark, and deep. Not the big deep craters you see w/ over-max loads, more like pinpoint and black....but they werent punctured as far as I could tell.

Blue Dot:

40gr Nosler Ballistic Tip. Trim: 1.135" OAL: 1.580" Primer: CCI 400

6.5gr: 1845 fps
6.6gr: 1862 fps
6.7gr: 1892.5 fps
6.8gr: 1939.8 fps
6.9gr: 1969 fps N=5 lost one primer
7.0gr: 1985 fps N=5 lost one primer

I lost one primer in each of the last two groups. There weren't really any visible signs of overpressure on the other cases from those groups. They were slightly dirty. One or two had a mild case neck dent. I could chalk it up to the 2x brass having primer pocket expansion...but Im more tempted to say that is where the MAX is. Recoil was stiff, and there was a LITTLE bit of smoke. From burn rate charts, Blue Dot looks to be fairly slow. Perhaps heavier bullets would be a good idea to test.

45gr Barnes TSX. Trim: 1.135" OAL: 1.575" Primer: CCI 400

6.6gr: 1839fps
6.7gr: 1857fps
6.8gr: 1872fps
6.9gr: inconclusive
7.0gr: 1900fps
7.1gr: 1918fps
7.2gr: 1931fps
7.3gr: 1943fps
7.4gr: 1955fps
7.5gr: inconclusive
7.6gr: inconclusive
7.7gr: 1975fps n=1

My sample sizes were small, and there was so much variation in some of these loads that I had to throw out too many outliers. None of the 7.5gr and 7.6gr loads got over 1952fps. From 7.5-7.7, there was a lot of flattening and extrusion. One case had a deep black crater. For practical purposes I would place the max at 7.4gr. However, I did not feel I was in any real danger shooting 7.7gr. Interestingly, as the charge moved towards the max, the empty cases began ejecting almost straight behind me on the right.

I got some data last week using Blue Dot and the 45gr BBS. The velocities should be almost identical, with the BBS being ~10-20fps faster in some cases.

28gr SS195 projectile. Trim: 1.135" OAL: 1.585" Primer: CCI 400

7.4gr: 2185fps n=1
7.7: 2249fps n=2
7.8gr: 2264fps
7.9gr: 2287fps max: 2364 :?: (which I had to throw out obviously)
8.0gr: 2309fps
8.1gr: 2314fps
8.2gr: 2335fps
8.3gr: 2342fps
8.4gr: 2306fps n=2
8.5gr: 2260fps n=1

Again, sample sizes were small due to outliers. Just about all of these loads were compressed, so I think that may have been a factor in creating these inconsistencies. Im assuming some of the charges settled differently than others. 8.4-8.5gr is getting to the point where you are charging the case up almost to the top...so I'd prob stick with loads under 8.4gr if I was gonna use this load data.



All loads were recorded using my FsN. Do not assume that all of these loads are safe. Use this data at your own risk.

There were other posts and a couple loads in the old thread, but I'll leave at this to try and keep drift to a minimum. The T/C loads I have in the cage and the ones I havn't posted yet will go into another thread eventually.

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iFire
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Re: Grant's Loads

Post by iFire » 13 Jun 2011, 19:40

Nice :thumb:

Between us we have A LOT of data :D

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Re: Grant's Loads

Post by Grantness » 13 Jun 2011, 20:02

Yep...I can't wait till the new FsN extended barrel & springs come out. We'll have a whole new group of variables to try out. I still need to improve my sample size before posting the ProReach loads. Also, I have some really nice EA Trident PFP loads that I may post if allowed. I'm actually kinda out of ideas outside of subsonic loads. I don't have any interest in testing full power >55gr FMJ's or <35gr traditional bullets because they just don't have anything worthwhile to offer... If only more Euro/Foreign powders would become available *sigh*.

You know, some people have suggested we compile a load data book. It would work out well because you have a PS90/FsN and I have an FsN & T/C (for now). My only concern is that we would have no way to reliably test pressures (and just sticking a sensor inside my T/C wouldn't replicate the timing of the blowback guns). I guess people have published data and guides w/o pressure testing before, but I'm not a lawyer...

I wonder if anyone has posted data for those new Excel autoloaders?

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Re: Grant's Loads

Post by rolcle » 06 May 2012, 17:32

Hello Grant,

Doing some back search and run into most excellent data of 6/13/2011.
I noticed that you use CCI primer #400 for most of your loads.
I have been using Remington 7 1/2 SRP. I do not have a chrometer and using middle range load to be safe. Will the Remington 7.5 primer, instead of CCI#400 make a difference to the load?

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Re: Grant's Loads

Post by Rapier1772 » 06 May 2012, 18:48

Grant hasn't been on in a while so allow us (hopefully others will chime in as well),
Yes, using a different primer can make a difference. I noticed it when I was testing subsonics, the same charge but different primers produced different results. But if you're going to normal loads & using the middle, you should be fine. In addition to CCI, I also use Winchester small rifle, & Remington 6 1/2.

Apparently both 6 1/2 & 7 1/2 may be used with the FsN. I think that is on here somewhere...
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Re: Grant's Loads

Post by rolcle » 07 May 2012, 07:47

Thank you for this info. One line bit me. In your review of the VVN350 you mention the brass catcher for your FsN. What is this marvel and where do I find relief for my back problem?

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Re: Grant's Loads

Post by Rapier1772 » 07 May 2012, 08:49

If you're looking for brass catchers, viewtopic.php?f=15&t=389" onclick="window.open(this.href);return false;

Also try the search function & a few more things may show up. I know the PS90 has a few threads about that also.

Do not recommend a catcher which mounts to the FsN rail. IIRC, V had one & it ended up cracking his rail.
How to post pics & videos: viewtopic.php?f=3&t=6363
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Re: Grant's Loads

Post by rolcle » 08 May 2012, 12:26

Rapier1772 wrote:Grant hasn't been on in a while so allow us (hopefully others will chime in as well),
Yes, using a different primer can make a difference. I noticed it when I was testing subsonics, the same charge but different primers produced different results. But if you're going to normal loads & using the middle, you should be fine. In addition to CCI, I also use Winchester small rifle, & Remington 6 1/2.

Apparently both 6 1/2 & 7 1/2 may be used with the FsN. I think that is on here somewhere...
I suspected that. For all the reading I have done in this infinite well of data, there seem to be no research done of what velocity change is gained by just changing primers.
I will run the advanced search again to keep up with any new entries.

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Re: Grant's Loads

Post by Kilibreaux » 14 May 2012, 23:58

I just want to say thank you for the effort you have put into compiling detailed loads and sharing the information with others!
I used to do serious, meticulous loading and I know how much brain-time and involvement goes into the task.
Thank you!

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Re: Grant's Loads

Post by John 743 » 02 Jan 2013, 20:12

I want to thank you as well for your work. Every one of my loads' starting points are based off your data.

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Re: Grant's Loads

Post by bruteandbear1 » 07 May 2013, 19:24

Hey Grant, I was wondering what kind of powders to use when reloading 28 grain bullets. I have blue dot for my 40 grain v-max and it works great with 6.0 grains. The powders they have at my local gun shop is longshot, hs-6, n350. I will be shooting them through a ps90 NOT an fsn, any help would be much appreciated thanks. :topic:

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Re: Grant's Loads

Post by Grantness » 09 May 2013, 00:14

Blue Dot is already one of the best for a 28gr bullet. Acc#7 cant be used unless it was extremely compressed. Id say you cant go wrong with Longshot . VVN350 is an excellent all around single base powder. Id stay away from HS6....its really not that great of a powder. Autocomp would be like a slight step up from HS6. Of course there's always HS7...the best powder I know of, but it hasnt been manufactured in a couple years.

If you look at the data you can see how powders compare bc I usually do at least one test with 28gr SS195 pull-downs.

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Re: Grant's Loads

Post by VeTTeMaNC486 » 09 May 2013, 11:09

bruteandbear1 wrote:Hey Grant, I was wondering what kind of powders to use when reloading 28 grain bullets. I have blue dot for my 40 grain v-max and it works great with 6.0 grains. The powders they have at my local gun shop is longshot, hs-6, n350. I will be shooting them through a ps90 NOT an fsn, any help would be much appreciated thanks. :topic:
Also, search iFire's load data if you have not done so. He had a thread with load data specifically for the PS90. IIRC the ps90 and hs6 seemed to do better than hs6 did in the fiveseven.

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Re: Grant's Loads

Post by bruteandbear1 » 09 May 2013, 17:54

Thank you very much grant I appreciate it. I will just use blue dot then because I have 4 pounds of it. What is a good starting point for loading up the 28 grain bullet with blue dot with the ps90, also a medium load and hot load. I like to stay in the medium when reloading my ps90. I want to thank you again for the help I tried using the search block as well didn't get any results for blue dot powder loaded for the ss195 bullets.

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Re: Grant's Loads

Post by bruteandbear1 » 14 May 2013, 21:36

Hey grant what is a good suggested starting point for reloading the 28 grain bullet ( ss195) with hodgdons longshot and perhaps blue dot. I have 500 of them to reload. I think longshot is the best bet. It will be through the ps90. I don't know if you have ever reloaded for the ps90? if you have not then im sorry for asking. I did see on ifire's load data that he started at 6.6 grains of longshot for the 28 grain bullet, but that seems to be a pretty hot load I would think.

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Re: Grant's Loads

Post by bruteandbear1 » 15 Feb 2014, 17:52

Hey grand I picked up a fn five seven mk2. I loaded virgin ss195lf brass and bullets with 6.4 grains of longshot for shooting out of the ps90 and they performed flawlessly. I would like to try shooting this load out of my new mk2 as well. I don't think it will be an issue but wanted to get advice on it first because I will be shooting it in 2 days. Thanks a bunch!!!

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Re: Grant's Loads

Post by Rapier1772 » 15 Feb 2014, 18:24

Unfortunately Grantness hasn't been around since last May.
I haven't used Longshot so I'll be of no help, maybe one of these other reloaders can step up?
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Re: Grant's Loads

Post by grimmond » 16 Feb 2014, 08:01

bruteandbear1 wrote:Hey grand I picked up a fn five seven mk2. I loaded virgin ss195lf brass and bullets with 6.4 grains of longshot for shooting out of the ps90 and they performed flawlessly. I would like to try shooting this load out of my new mk2 as well. I don't think it will be an issue but wanted to get advice on it first because I will be shooting it in 2 days. Thanks a bunch!!!
It will work just fine in your FSN.
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Re: Grant's Loads

Post by bruteandbear1 » 16 Feb 2014, 16:35

ok thanks guys I appreciate it. I figured it would be fine but wanted some experience from five seven shooters.

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Re: Grant's Loads

Post by JoJo » 17 Feb 2014, 09:37

Rapier1772 wrote:Unfortunately Grantness hasn't been around since last May.
I haven't used Longshot so I'll be of no help, maybe one of these other reloaders can step up?
What happened to Grantness?

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