Measuring Barrel Twist
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Measuring Barrel Twist
Is there an easy way to measure the twist rate of an unknown barrel?
I'm assuming a smith can do it but is there a diy method that is alluding me?
I'm assuming a smith can do it but is there a diy method that is alluding me?
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Re: Measuring Barrel Twist
Clearly...
Badger
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Re: Measuring Barrel Twist
It involves a cleaning rod and some sticky tape .
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Re: Measuring Barrel Twist
Use a patch of a size that will engage the rifling when you pull it through.
Mark the top of the rod at the barrel. Pull the rod through and when the original mark has done a complete turn, mark the rod again and measure between the marks on the rod to get the twist rate.
I usually do it 2 or 3 times to make sure I get consistent result.
HTH
Mark the top of the rod at the barrel. Pull the rod through and when the original mark has done a complete turn, mark the rod again and measure between the marks on the rod to get the twist rate.
I usually do it 2 or 3 times to make sure I get consistent result.
HTH
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Re: Measuring Barrel Twist
Put a mark, ie a bit of sticky tape or a paint mark, on a cleaning rod at the pawdle end. Slide the rod through the barrel and count how many times the mark rotates in a given length of push. If it rotates once in 8 inches that is the twist rate. If it rotates once in 12 inches, that is the twist rate.
Badger
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Re: Measuring Barrel Twist
Some echo in here.
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Re: Measuring Barrel Twist
See, oomans ! Sometimes we can be helpful...
Badger
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Quidquid latine dictum sit altum viditur.
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Re: Measuring Barrel Twist
2 minutes too late! :lol:meles meles wrote:See, oomans ! Sometimes we can be helpful...
“The standard you walk past is the standard you accept.”
Lieutenant General David Morrison
I plink, therefore I shoot.
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