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Old October 22, 2012, 03:04 PM   #15
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 4,628
Rodfac, I agree with your findings on case weight vs velocity.

Using the same powder charge, primer and bullet seated with the same neck tension and OAL in .308 Win. cases weighing 149 (WCC58 headstamp) to 185 (weird foriegn military headstamp) grains, there was about a 70 fps spread in average muzzle velocity.
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