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Old December 25, 2012, 06:32 PM   #7
Jimro
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Join Date: October 18, 2006
Posts: 5,445
In pistol FMJ's are a little different than JHPs, the FMJ's have a "naked base" which is more compressible than the solid copper base of a JHP (reverse drawn jacket). This matters a lot more in rifle than pistol though.

This is from Hodgdon for 9x19, which I assume is what you meant by 9mm.

125 GR. SIE FMJ Winchester 231 .355" 1.090"
4.4 1009 24,600 CUP 4.8 1088 28,800 CUP

Hope it helps.

Jimro
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