77gr Nosler CC load?

[markm]

Thanks for the reply. I'm currently limited to H322 and Ramshot X-Terminator, so I think I'll focus on the H322.

You should see the Wolf vs CCI #41 thread. We gained 60 fps with the CCI primer with the EXACT same load of H322 with 77s. Now there may be a little accuracy sacrifice, but if you want the velocity, there's some to gain in a hot primer.

[Pappabear]

Sounds like you are right on the limit. Once you get around that number, accuracy is more important than pure speed. It's a legit goal but not solitary.

Gotta love FPS, but accuracy is huge too.

PB

[iflyskyhigh]

Correct. My 2460 load is more accurate, but I sacrifice a little velocity, and down range performance.

[PatEgan]

You should see the Wolf vs CCI #41 thread. We gained 60 fps with the CCI primer with the EXACT same load of H322 with 77s. Now there may be a little accuracy sacrifice, but if you want the velocity, there's some to gain in a hot primer.

VERY interesting. I bought several thousands of the Wolf when they were cheap and plentiful, and for years heard guys tout them as 'hotter.' I need to read that thread...

[markm]

VERY interesting. I bought several thousands of the Wolf when they were cheap and plentiful, and for years heard guys tout them as 'hotter.' I need to read that thread...

Anyone touting Wolf as hotter is nuts. They're super mild. And that's what makes them a great precision/target primer.... the low SDs. They're so mild, they don't ignite some ball powder reliably.

[iflyskyhigh]

Anyone touting Wolf as hotter is nuts. They're super mild. And that's what makes them a great precision/target primer.... the low SDs. They're so mild, they don't ignite some ball powder reliably.

I love the S&B primers for the same reason.

Single digit SDs and ESs 10-15 pretty consistently in my .308 loads.

[PatEgan]

I loaded up some Nosler CC's on top of 21.6gr. of H322 in the barn last night and just tried them. Average of 2,485 fps. through a BCM 16" bbl.

I still have a ways to go to get closer to the Mk.262 clone round I'm aspiring to.

[BobinNC]

I loaded up some Nosler CC's on top of 21.6gr. of H322 in the barn last night and just tried them. Average of 2,485 fps. through a BCM 16" bbl.

I still have a ways to go to get closer to the Mk.262 clone round I'm aspiring to.

22.1 Grains of H322 yielded me 2688 FPS in an 18" 5.56 BCM barrel, LC Brass, Nosler 77 gr CC, CCI450 primer @ 2.250" COAL. That's still a 55,000 PSI load according to a Quickload output that somebody ran for me. Accuracy was excellent, and I haven't gone higher, as that rifle is no longer mine, nor do I currently have enough H322 on hand to run more tests on the 16" AR I now have.

[markm]

I'm telling you, these powder lot variances can be huge. I loaded some recently that I thought was just "stout"... not even chasing 5.56 pressures/velocity, and I was getting blown primers and stuff.

Going forward, I'm definitely going to calibrate for any lot changes.

A buddy of ours worked up our original Mk262 copy with XBR and Wolf Primers. I'd love to know how that work up would have gone with the hotter CCI 41 primer.

[PatEgan]

Thanks to both of you. I'd be happy with high 2600 if I can get it with the H322 without pressure issues.