H4895 is a great one if you have it. Also, very accurate for what they are the Hornady 150 fmjbt, that bullet will surprise you. If only out to 400, no issues. I have no problem hitting a 4" plate at 300 with the 716i
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Moderator
H4895 is a great one if you have it. Also, very accurate for what they are the Hornady 150 fmjbt, that bullet will surprise you. If only out to 400, no issues. I have no problem hitting a 4" plate at 300 with the 716i
GET IN YOUR BUBBLE!
Senior Member
Kinda mimics Fed GMM if you can stand to meter it. Never have tried H4895.Originally Posted by HKGuns
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Member
IMR 4064 is really where it is at for .308 gas guns. I shoot pretty much only 175gr bullets and use the MK318 Mod 0 (FGMM 175) recipe as a baseline.
Powder: IMR 4064 @ 41.7 grains
Bullet: 175gm Sierra Match King
Case: Federal
Primer: 210M
"We sleep soundly in our beds because rough men stand ready in the night to visit violence on those who would do us harm."
- George Orwell
Senior Member
It's been easier to come by in recent months too. It is a world class ass ache to meter, but it's good stuff. I did have a lot velocity swing of over 100 FPS between 8 lb jugs in the past few years, so I keep a close eye on lots.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Senior Member
Hit the range today. Brisk but beautiful morning in WY.
This is what I was able to do at 100 yards. I'm not a pro shooter, just going off what the Army tried to teach me.
Saltech brass, CCI LRP, Ramshot TAC.
18" Stag 10L with YHM ULT can and 3-10 scope.
ProChrono DLX at 10 feet.
Hopefully the pics are OK.
Brass pic is lowest charge on bottom, working up.
Thanks ahead of time for looking and offering any suggestions.
Last edited by czgunner; 01-12-23 at 14:02.
Senior Member
Definitely have some swipes on the heads in the top row... and the one below it. That would say you're running warm on those loads.
Last edited by markm; 01-12-23 at 14:20.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Senior Member
Thanks. Yeah, I think I was a grain away from max. TAC may not be the powder for 155 grainers. I'll try to find some IMR 4064.
Senior Member
We've had the LMT gasser shoot very hot at below max. Depends on the barrel and the powder lot. Just takes a little experimenting to see what works best.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Member
A little primer cratering as well on those max TAC loads.
And I mentioned volume because it can effect the max charge weights as well. .308 / 7.62x51 cases can have quite a swing in weight and internal volume.
FWIW, I don't measure case volume either, but to me, it is something to consider while getting high pressure signs early.
Older case volume data ( 1967 and current )... but
The chart used a typical lead core 165/168gr bullet.
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From this article.
https://www.shootingtimes.com/editor...for-ars/368218
Last edited by bfoosh006; 01-13-23 at 09:56.
Senior Member
I walked into Shipton's Big R and they had a pound of IMR 4061. Looks like I'll be loading some of that.
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