? checking twist in barrel

[trgtsnpr]

I ran patch through the barrel marked rod it turned 2 times in 24" on a winchester 70 barrel any help would be appreciated thanks bill

 

[Ledd Slinger]

1 in 12

What caliber is it?

 

[trgtsnpr]

.223

 

[Ledd Slinger]

Figured it was a varmint rifle. With a 1 in 12" twist you should be able to shoot bullets up to 65gr in a 223.

Speed will be best with 40gr. 50gr will probably be best for speed and accuracy combined. And Accuracy may start to fall off at the upper weight range of 65gr.

 

[trgtsnpr]

thank you i appreciate your time bill

 

[Ledd Slinger]

No problem Bill. Good luck

 

[Ackman]

I ran patch through the barrel marked rod it turned 2 times in 24" on a winchester 70 barrel any help would be appreciated thanks bill

Pushing a patch or brush through the bore makes it unscrew. To check twist rate use a new brush and pull it from the muzzle. Tape the rod where it comes out of the guide, put a mark on top.....pull 'til the mark is back on top, measure how far the tape has traveled. Takes only one time.