.243 Winchester Twist rate: 1:7, 1:7.5, or 1:8

[johnc427]

So I'm having a barreled action built with a 24" Shilen barrel and #7 contour and am trying to figure out what twist rate I'm gonna use. I'm sure there is a billion threads already about this so I apologize in advance. Looking to shoot 105-115 grain pills (Bergers, Hornady, etc). Gonna be used primarily for targets to 600 yards and coyotes. Thanks for your input!

John

 

[Rob01]

1:7.7 would be my choice for 105s to 115s. If 115s only then a 1:7.5. If 105s only then 1:8-8.5.

 

[Jaxdialation]

Rob is my top 243 expert. What he says is gold. Plus he has that kick-butt avatar.
I use only 115 DTACs, and have found the 7.5 twist to be perfect.

 

[johnc427]

Great, thanks for the info! Gonna go with 1:7.5 I think!