Rifling twist????

NSEGE

Joined: Dec 2003

Posts: 1095

EE: 100% (65)

MT, USA

Posted: 2/23/2023 4:58:25 PM EDT

Just bought a Ruger American Predator in 6mm creedmoor, specifically because it is advertised on Ruger's website as having a 1:7.7 twist for the heavier bullets. I cleaned it up, ran a patch through the barrel, and thought it didn't look right on my cleaniing rod, so I used a tight patch and carefully measured the twist, twice. It is 1:9.5, not as advertised.... what's up with that???? Might as well have kept my 243!!

Fbuckshot

Joined: Jan 2008

Posts: 2436

EE: 0% (0)

ID, USA

Posted: 2/23/2023 5:50:27 PM EDT

[#1]

I'm thinking there's no marking on the barrel, right?

I'd call Ruger and see what they say.

If you do, please let us know what they say.

NSEGE

Joined: Dec 2003

Posts: 1096

EE: 100% (65)

MT, USA

Posted: 2/23/2023 6:18:43 PM EDT

[#2]

It is marked 6mm creedmoor and is in fact chambered as such

bpm990d

Member

Joined: May 2006

Posts: 1277

EE: 0% (0)

ME, USA

Posted: 2/25/2023 7:41:15 PM EDT

[#3]

I thought all the Ruger barrels were hammer forged. I'd expect to see some variation in a button rifled barrel but a hammer forged barrel should be right on because of the way they are produced.

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Rifling twist????

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Rifling twist????