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Take a cleaning rod with a non-rotating brush, push it into the muzzle about four inches and stop, mark a line on the cleaning rod with a magic marker right at the muzzle, put a tape flag at the end of the cleaning rod or at least 16" from muzzle, push down on the rod and watch the rotation of the flag, when it has made one revolution, stop pushing, put a mark on the rod at the muzzle, pull the rod out , measure from one mark to the other and you will have the rate of twist for your rifle.

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Wiki User

14y ago
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Anonymous

Lvl 1
3y ago

In all likelihood, it will be 1:9.5

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Q: What is the twist rate of a Sako Finnbear 7MM Rem Mag rifle barrel?
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