Re: Collet Bullet Puller help....
Will go with a +1 on 312,
I have both types and if you are pulling more than a couple, go with the Hornady collet type.
You don't exactly need a collet for each caliber, I have pulled 277 with the 30 and just for grits and shingles I tried the 30 on the 260 Rem and had no difficulty.
If you have a bunch of iffy loads or just did not get the accuracy from some previously reloaded ammunition, perhaps a new barrel or new gun, you cannot beat the speed and ease of the collet type.
When I bugger up one or two, I pull out the kinetic hammer type.