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Old February 2, 2013, 01:23 AM   #2
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Join Date: November 6, 2001
Posts: 1,027
Seating shorter especially in 9mm will increase pressure. I seat 124 fmj's to 1.150" and they feed fine. Just check to make sure they will chamber and the slide will close in your pistol. I've read and agree that 4.8 grains is safe in any case with any 124 grain bullet and will operate the slide in most all pistols. I've found 4.8 grains is a very mild load with 3 or 4 different 124 fmj's I've loaded. For me 5.1-5.2 grains of Unique with 124 fmj's shoots well with no problems. My experience is that I wouldn't want to go over 5.5 especially in mixed brass. I load CCI SP primers. Just make sure you have good bullet tension in all your case brands.
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