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Old October 14, 2019, 07:10 PM   #5
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 7,289
Let someone else chronograph your rifle and ammo.

If they get much less velovity and vertical spread, you're not holding the rifle the same for each shot. Big short range spread is usually caused by inconsistent vertical position of rifle contact with shoulder.

Ballistically, a 50 fps velocity spread causes less than 2/10th inch drop difference at 100 yards.

Last edited by Bart B.; October 14, 2019 at 07:20 PM.
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