Thread: Powder charge for .38 vs 9mm
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Old 11-20-2020, 01:54 AM
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Originally Posted by OneHorseRanch View Post
Ok, thanks! I did leave out a bit of info. W231 powder, lead semi wadcutter bullets 158 gr. I guess my question was: why so much less powder for the .38. I would have guessed that I would need more because of the extra cartridge length. I do have a RCBS loader with the Nosler book. What are your recommendations for grains for the .38? should I just go by the book or is there a magic number you folks wouldnt mind sharing.
The 38 case has 2x + the volume as 9mm. So with identical powder charges & bullets, pressures will be quite a bit less in 38sp.
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