20in 6.5 PRC 140 class powders?

[N2TRKYS]

Not very fast. 2685 with factory barrel. But again stupid accurate

Ouch. Yeah, I wouldn’t be happy with that.

 

[Ganderzone]

Really like 4831sc in my 20" pushing 140's at 2890, tiny groups, temp stable. I have n565 and h1000 I use in my 7 PRC but with how well 4831sc shoots I have no need to mess with it, 20-40fps won't make any difference on target.

 

[bowrunner81]

I’d try 4831sc out of a 20” barrel.

 

[Ganderzone]

I will add, if trying 4831sc buy atleast 2# of a matching lot or blend them before starting work up. I've seen some pretty wild lot to lot variations, always extremely accurate but I've seen my charge vary by as much as a grain to stay in a node.

 

[Pilsner]

Having great luck with H4831SC and H4350 out of my 6.5 PRC with 18" CF BSA barrel. Easily getting low to mid 2900's and 5 shot groups in the 0.25-0.5 MOA range. No pressure signs with either. 143/147 ELD-Ms.

 

[ID-Muley]

Having great luck with H4831SC and H4350 out of my 6.5 PRC with 18" CF BSA barrel. Easily getting low to mid 2900's and 5 shot groups in the 0.25-0.5 MOA range. No pressure signs with either. 143/147 ELD-Ms.

That’s crazy good… you longer than 2.95 OAL? No preference on either?

 

[Pilsner]

Right at 2.950" and my preference is for 4831SC since I can find it/have more of it. We are at 2375' of altitude if that matters. I have tended to drop back to around 2900 flat since accuracy didn't degrade and brass/powder is expensive these days, so longer brass life and less powder used for acceptable results = more better. Giving some thought to trying out 130 grain Sierra match burners or TMK's but I also hate to mess with a recipe that is working...