[Patscrazy]

Thanks for the guidance. I’ve been following the Hornady method lately. So I’ve just been picking charges, that are safe, but near or at book max, that I believe will get me close to a velocity range I want to be at. Starting out with 10 round groups and doing comparisons. Then shooting larger groups based on those. So far my 10 round groups have been similar, all around 1.25-1.5 MOA, but my velocities have been lower than I want. The 69 grain bullets will be faster and hopefully shoot a little better than the 75s and 77 smk I’ve shot up to this point. But if I want to be in 2700+ range with 75/77s with no pressure, I need to try a slower ball powdering 2520 or 2000 MR.

[Patscrazy]

Anyone using AR Comp with these 69ers? I’ve tried some of the 75s and they shot well but seeing if my new barrel like these 69s better.

I’ve shot the 75s with 22.4 and 22.9 grains of AR comp. All loaded to 2.255~. No pressure signs. The 10 shots of 22.9 had an average of 2604 fps in my 16” AR15. Going to try 23.1 grains next.

Figured I would start about there for the 69s. Hornady has 23.5 grains of AR Comp as their book max with their 68 bthp. Thinking loading 10 @ 23.2 and 10 @ 23.5.

[Author]

Posts