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Old 05-08-2011, 19:59   #1
crankme30
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Join Date: Jun 2010
Posts: 51
45's not making book velocity?

Hello,

I am fairly new to reloading, I have only loaded 45ACP and have only used hodgdon HP38/Win231 powder and Precision Delta 230Gr FMJ bullets using a Dillon Square Deal B press.

According to Hodgdon's load data, 4.2gr of HP38 at 1.200 AOL should make 751 FPS with a Hornady 230gr FMJ FP. That is the closest data I could find as nothing is listed for the precision delta 230gr FMJ. When I chrono my loads using 4.5 gr of HP38 I am averaging only 660 FPS.

Anyone else have issues with results that far off from listed velocity? Is there something I could be doing wrong? Any input would be appreciated.

Thanks
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