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Old August 28, 2019, 07:01 PM   #4
Bart B.
Senior Member
Join Date: February 15, 2009
Posts: 7,489
Adding weight to the muzzle lowers the frequency it vibrates at vertically. Bullets will depart at a different angle to the line of sight.

Groups with the weight on are usually higher if bullets leave on the muzzle up swing, lower if on the down swing. If bullets leave about the extremes of the muzzle swing, the reverse can happen or not be significantly different.

Last edited by Bart B.; August 28, 2019 at 07:29 PM.
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