The Lee App Bulge Buster Kit and the appropriate Lee Carbide Factory Crimp Die, restore 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 show a noticeable stop ring near the base. You will most likely find cases with these problems in mixed range brass.
**Will work with the following cases:380 ACP
41 AE (Use 40 S&W Factory Crimp Die)
45 Win Mag
The Lee Carbide Factory Crimp Die must be purchased separately.
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WARNING: Steel parts in this product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. For more information, go to www.P65Warnings.ca.gov. To prevent exposure, do not alter the product by welding, grinding, etc.