Help with load

[omega1]

Does anyone out there have any loads for a CBI 223 8 twist 25in bull barrel. I have tried 77gr Nosler and Berger, 80 gr Nosler and can't get them to group worth a ****. The only bullet that groups well is 55 gr Berger match. Any contributions will be greatly appreciated. The only reason I went to the 8 twist was to shoot the heavier bullets but I can't seem to do it.

[JCalhoun]

Have you verified the twist rate?

[stomp442]

The 80s would probably prefer a 7 twist to properly stabilize. Have you tried shooting them at 200 yards to see if they settle down?

[omega1]

I have verified the twist rate, the 80gr bullets check out well according to Bergers twist rate calculator.I have not tried them at 200 because they did so bad at 100. I know that some bullets shoot better at 200 because of the stabilization factor but they don't group at .750 at 100.

[wbm]

Bullet that shot the best for me in .223 with that twist rate was the 70gr Berger.

[stomp442]

Try them at 200 before you give up on them. Its worked for me in the past. I had a .308 that would shoot about a 2" group at 100 with the 168 Bergers but would group 3/4" at 200.