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Where do you find twist rate of barrel?

Posted: Tue Jun 03, 2008 7:54 pm
by Isimanica
I got a XM15-E2S in a trade and was wondering how do you figure out the twist rate of the barrel? Is it written some where on the barrel or rifle?

Re: Where do you find twist rate of barrel?

Posted: Tue Jun 03, 2008 8:37 pm
by boomerang
It's stamped on the barrel of my AR-15 but you can also use a cleaning rod with a patch to estimate it.

Re: Where do you find twist rate of barrel?

Posted: Wed Jun 04, 2008 8:01 am
by M9FAN
Isimanica wrote:I got a XM15-E2S in a trade and was wondering how do you figure out the twist rate of the barrel? Is it written some where on the barrel or rifle?
Is that a Bushmaster? If so, my Bushmaster is stamped on the top of the barrel near the muzzle break. Have a look there...