6br twist rate question???

[fishnfst]

Hello, got no replies on my first post. I've decided on a 6br for my next project rifle... 90% punching paper out to 300 and some land bound squirrels > 400yards. I wanted to shoot the 55 and 70 grain blitzkings for live varmint.

I haven't had much experience with the br bullets. Seems from what I've read so far that the 68grn bullets are used mostly for 100/200br and then the 70 or 80+ grain bullets ie 80grn fowler fb are used out to 500yrds.

Now I need to decide on what rate of twist I should get for the abovementioned bullet weights. Is this too wide of a range of weights or is there something that will work well for these weights. I read the faq's and it seemed that a 1-10" would be good for anything up to 90grains without sacrificing too much velocity. Is this going to be an OK twist rate or should I go with something slightly slower like a 1-11" or 1-12". Seems like the 6ppc shooters like a 1-14 for the sub 70grain bullets.

 

[MikeWilkerson]

if you want to shoot as high as 80 or 90 grain bullets go with the 1-10

 

[kaferhaus]

My barrel is 1:14, It will stabilize the Sierra 75gr FB bullets just fine and I've gotten several sub 4" groups at 600M with them in dead calm wind conditions.. We won't discuss the groups shot in "other conditions"....

I've not tried any heavier projectile in it and it's dubious that it'll stabilize anything heavier.

 

[fishnfst]

Looks like I'm going to go with a 1-12 twist.. I talked to the smith I am going to have build the rifle and he recommended the 1-12" for bullets up to 80 grains. When I contacted Berger they recommended the same thing.. Getting to ready to box this puppy up and send her off..