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Twist rate

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Just wondering what the twist is in a .54 Killer Colonial. I don't reckon that's important; I'm sure it is round all slow.
Should be marked on the bottom of the barrel. Believe it's 1-70. Just started on a SMR from them. Barrel is marked back towards the breach, has maker (mine is a Rice) and twist, plus has Kibler stamped in it.
 
Should be marked on the bottom of the barrel. Believe it's 1-70. Just started on a SMR from them. Barrel is marked back towards the breach, has maker (mine is a Rice) and twist, plus has Kibler stamped in it.
Current kibler barrel supplier is Green Mountain. Not sure how to tell when they actually started shipping gm though.

I think that if yours is a rice it is also probably longer than the gm barrels.
 
As said, the .32, .36, and .40 are 1-48. The .45, .50, .54, and .58 are 1-70. Green Mountain is the supplier for most all, but my .36 SMR has a Rice barrel. I believe that’s true for the .32 also. Possibly the .40 too. It’s all marked on the bottom.
 
Old stock maybe.
IMG_20231022_071341342_HDR.jpg
 
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