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hodgdon load data for 124g 9mm: ***
i am wondering why with a heavier bullet 124g vs 115g they are telling you to have a shorter cartridge overall length with almost the exact same amount of powder and yielding a somewhat similar velocity
115g gdhp
col= 1.125
5g universal
1149fps
125g sie fmj
col=1.090
4.9g universal
1118fps
could someone explain this.?
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