.308 not grouping

[Johnny Crash]

I wouldn’t go any heavier than the 168gr in a 1.10 twist short barrel.
Not knowing what powder your current load uses, I also wouldn’t recommend a faster powder. A change in CBTO May be all that’s neede to get you to .5 MOA.

I understand what you’re saying. Unfortunately it won’t shot 168s for shit. I’m actually thinking about testing 175s and heavier never time out. This rifle hates the light rounds. I was shooting half MOA groups with 178s and 2” groups with 168s

 

[MrMajestic]

Why such a heavy bullet? Just curious.

short barrel to increase energy and matching twist to length to reduce balance errors in bullet

Why such a heavy bullet? Just curious.

To maximize energy from a short barrel and minimize balance errors(for lack of a better term) by better matching bullet length to twist...