Primer Hardness Test

Retrieved: 12/19/2014

OK Gents, you piqued my curiosity... unscientific test but all the same does show a hardness of metal.

If we can all agree that the largest number equals the deepest imprint diameter (the softest metal) on a primer - then here are the numbers using a Lee Brinell lead hardness tester:

0.32 - CCI 300 LP
0.34 - Remington 2 1/2 LP... 6% softer than CCI
0.40 - Winchester WLP... 25% softer than CCI
0.42 - Federal 150 LP... 31% softer than CCI

CCI - Hard
Rem - Not so hard
Win - Softer
Fed - soft (best for light springs)

Last Edit: October 22, 2010, 11:49:23 AM by John Boy