The Lee APP Bulge Buster Kit restores free function of rimless cases that have low base bulges. Low base bulges usually occur from chambers that do not fully support the cartridge or cases resized in carbide dies from manufacturers other than Lee. These cases show a noticeable stop ring near the base.
Works with carbide factory crimp die (sold separately) for these cartridges:
380 ACP
10mm Auto
40 S&W
41 AE
41 MAG
45 ACP
45 GAP
45 WIN MAG
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