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Why do expansion when fragmentation at subsonic velocities has already been proven? Make a .30 cal version of the bullets in the CCI .22LR segmented HP subsonics. I have dissected these and they are segmented with 0.080" depth (1/3 of .224) cuts on the outside of the bullets. I suspect that the cuts are on the outside because the segmenting is done to the lead wire while it is still in the spool. That would make sense for mass production. Then bullets can be made from those spools on existing equipment.
RCECO also has a nice note on swaging pre-fragmented lead bullets the manual way in chapter 3 of their online manual.
150gr. would also work in subsonic loadings for conventional 308 barrels...
Last edited by kombayotch; 03-11-2010 at 12:42 PM.
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