6 ARC powder consensus for heavies in AR

[loclass]

I use 29.0 grains of Lever with 107 SMKs out of a 22" barrel for 2690 fps.

 

[TimK]

I use 29.0 grains of Lever with 107 SMKs out of a 22" barrel for 2690 fps.

Holy crap. I'm apparently way under!

 

[db2000]

Here’s a thread. There’s others too with load data.

Hornady 6 ARC data for Lever too hot?

I am trying to work up a load for Berger 108gr Elite Hunters with Lever for my 6 ARC bolt gun. They list a max of 31.2 gr and 2850 FPS out of a 24" bbl. At 30.6 gr I am getting 2746 FPS out of a 16" barrel and ridged primers, extractor marks, and heavy bolt lift.

www.snipershide.com

 

[db2000]

And when I say "N540 kind of surprised me", shooting ten round strings with a variety of powders loaded nowhere near max, N540 produced noticeably more consistent results (lowest SD/ES and tightest MR). Specifically I was using 26.5gr of N540 with 103 ELD-X and GM205MAR loaded to 2.245" COAL. But it's still kind of slow at 2350fps and might be worth playing around a bit with higher powder charges.

2350 is really slow vs LVR. Did you ever work the load up higher with N540 and 103s?