BR with 7 1/2 twist

[Mark deluia]

What are my options on bullets selections for dog hunting? 23 1/2 in long , 7 1/2 twist
Will 70 and 80 be possible?

 

[BenPerfected]

Check out the Berger Bullet twist rate calculator.
Ben

 

[X-Caveman]

Berger 80gr FB Varmint shoot well in an 8 twist with 4895 or XBR8208 for me. Plus they have a long bearing surface so you can prob load them into the lands even with a longer free bore that the fast twist is likely to have.

 

[powderbrake]

Berger 88 Varmint flat base work great in my 8 twist barrel for P dogs.

 

[shoot4fun]

I don't think you'll have any trouble shooting whatever you like but that is merely an opinion. I can tell you I have launched many a 40 grain Amax at 3,700+ FPS in a 7 twist AR barrel. None have blown up and it is very accurate. It's made a great combo for "ride & shoot" prairie dogging.
I am assuming your barrel is a cut rifled and hand lapped Kreiger, Bartlien or similar and has been had lapped.
As for those online twist rate calculators, I've never seen one that advised you were "over stabilized" with any bullet/twist combo.

 

[Mark deluia]

I don't think you'll have any trouble shooting whatever you like but that is merely an opinion. I can tell you I have launched many a 40 grain Amax at 3,700+ FPS in a 7 twist AR barrel. None have blown up and it is very accurate. It's made a great combo for "ride & shoot" prairie dogging.
I am assuming your barrel is a cut rifled and hand lapped Kreiger, Bartlien or similar and has been had lapped.
As for those online twist rate calculators, I've never seen one that advised you were "over stabilized" with any bullet/twist combo.

Thanks all will try some 80 grain nosler BT I have a couple hundred laying around

 

[Stan Taylor]

Check out the Berger Bullet twist rate calculator.
Ben

I don't buy that website I let paper tell me what will shoot.

 

[JEFFPPC]

I don't buy that website I let paper tell me what will shoot.

I'm 100% with Stan, what you see on targets will be the real answer.