Random thoughts on inertia bullet pullers: If you are breaking your inertia bullet puller, it clear you're using it wrong! It is NOT a hammer. Use your wrist to drop the hammer-looking device that is not actually a hammer on something solid (I just drop mine on the concrete floor) and bullets should come out easy after tapping it a few times. Technically, you could drill a hole in the handle and just drop the cartridge holder onto something solid and it would work! Smashing the hammer down using your entirre arm will just tire your arm or break the tool. It's true that the heavier the bullet, the easier it is to drop out... it's called "inertia for a reason! The cartridge case stops suddenly and the bullet tries to keep going. If you have crimped rounds, or rounds that have been loaded for a long time (neck weld), just seat the bullet a little deeper with a seating die, then use the inertia puller. .22's are the worst due to their light weight. I can't imagine anything smaller! I've had my 2 RCBS inertia tools (honestly they should drop the "hammer" name completely! It gives people the wrong impression of how to use it) for many years, my oldest over 30 years (the second I aquired in a trade) since I learned the proper way to use them. RCBS will replace broken parts/or complete tools if you break it. Keep the cap on tight and the collet will remain in pristine condition. My oldest puller has the original collet but the o-ring has been replaced due to the rubber rotting from age! If your collet comes apart, set all 3 pieces together on a flat surface and roll the o-ring down over the top for easy assembly. A bit of tissue in the bottom of the cartridge holder will save soft point bullets from being deformed when they hit the hard plastic. Dump the contents of the cartridge holder into a small pan or box to save & reuse the contents... but only if you are absolutely certain of the powder type! I have pulled hundreds (maybe more!) of bullets from .223 up to .338 WM and my tools still look new, other than being a bit dirty. I like the inertia puller because it doesn't leave marks on the bullets. If that doesn't bother you, the side cutters or a collet type puller works probably just a bit faster. Use yours (no matter what brand) properly and it should outlast you by a couple of generations!
Cheers,
crkckr