Quote History Originally Posted By squirrel_herder:
Are you sure of the twist on the #1? That's really fast. What is stamped on the barrel?
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Yep! I thought it was a type at first when I saw it on a few websites. The barrel doesn't have the twist rate stamped on it, though. On Ruger's website they have a video showing the exact same gun off and the Ruger rep even says it is a 1:10 twist.
My guess is it's so fast because I've seen Hornady now has a 395gr subsonic load for the 450 BM, and another manufacturer has a 425gr sub load.
I did find a guy who tested the No. 1 in 450 BM and he recorded velocities, and the average was just slightly under manufacturer velocities. The 250gr FTX which is what I shoot out of it does 2200 fps out of a 20" barrel according to Hornady, the guy who tested the No. 1 said his average with that load was 2,197. So it seems the twist had almost no effect on velocity.