Twist rate?

[LACamper]

Is the twist rate of an AR stamped on the barrel? If not how do I find out what it is?

 

[BOSS302]

should be stamped on the barrel, unless you specifically ordered otherwise, it's probably 1/9 twist.

 

[LACamper]

Thanks!

 

[dzelenka]

It is stamped on most. Otherwise, take a wood dowel that is a tight fit - not so tight you won't be able to get it out - and tap it down the bbl. when you back it out, you can measure the twist.

Ouch! That sounds a bit harsh. Just put a tight fitting ptch on a cleaning rod. Mark the rod so you can tell when the rod makes 1 turn. You will also need to mark the rod so you can measure the distance you push it in to make that one turn.

Dan

 

[dzelenka]

The twist is stamped on our match barrels.

I would be more concerned with the damage that the "repair" will cause when you break that dowel off in a .224 diameter barrel.