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Old 11-19-2019, 05:20 PM
old97dog old97dog is offline
Join Date: Mar 2010
Location: MN
Posts: 2
Default How critical is Overall Cartridge Length in the M1?

I recently purchased a Field Grade M1 from the CMP and I am in the process of loading ammunition for it: H4895 powder and a Speer 150Gr BoatTail bullet (.308 BTSP). With the bullet set to an Overall Cartridge Length of 3.34 inches, there is very little of the bullet being held by the neck of the cartridge case.

Can I set the bullet deeper in the cartridge case, reducing the overall cartridge length? Or, do I need to select a different bullet with a flat base?

Thanks, old97dog
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