I loaded up some .223 today.
2nd fired Wolf brass. Sized, trimmed, pockets prepped.
Bullet is 77 gr Nosler Custom Competition. Light crimp with FCD.
Primer is CCI small rifle(400 I think).
Powder is TAC, 23 grains.
Rifle is Sig 516 10” with A5 heavy buffer and YHM brake. I have a rifle gas valve to ge the smallest port possible.
Suppressed with YHM Turbo.
75 ish degrees. 800 feet above sea level.
I do not own a chronograph....someday.

These primers look a little flat to me and maybe even the pin mark seems too deep.
Opinions? Sierra lists 23 grains as a middle of the road charge.

I know there isn’t much (if any) Sig 516 love here, so please go easy on me.