7 PRC best powder choice w/153 HHT

Unoboats said:

H4831sc. Exceptional accuracy and velocity in a 20" bbl @ 200 yds.(target attached) 400 yd groups sub .5 moa

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Unoboats said:

H4831sc. Exceptional accuracy and velocity in a 20" bbl @ 200 yds.(target attached) 400 yd groups sub .5 moa

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bdpayne2000 said:

Can you share what bullet and what velocity was achieved?

I had very poor velocity results with H4831 and 180 gr out of a 20" 7PRC. It just built pressure way early in load development. H1000 was just too slow of a burn rate. R26 did the trick with 175 ELDX at 2900.

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Don Rackley said:

You may not have been asking me, but I got 0.45" groups with 65.4 gr 4831SC and 162gr Eld-M with avg MV of 2936 from a 24" Proof bbl.

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BBean70 said:

I am still working on a load for my 7 PRC with the 153 HHT using H-4350 getting good results under .75 moa and a MV of about 3200. Still trying do dial it in a little more

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dustbag said:

Can I ask your load details. What brass, charge weight and overall cartridge length. I just started break in on mine but once it speeds up gonna start load work with the 153HHTs. Thanks!
Dustin

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BBean70 said:

I'm using ADG Brass, Coal 3.27 64.3 Gr H-4350 MV 3263. I am going to back this down a little more. A week ago I went to the range was trying to see If crimping would get my groups tighter. A light crimp did tighten them up a little but bolt lift was a little too heavy and I could see faint ejector marks this time. It was quite a bit warmer this time I shot. Shot well though. Just under .5 MOA at 200 yards 6 shot group. 28.88 ES 10.52 SD. My next loads I will back down .5 grain less and see how it does.

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