The collet bullet pullers work well with sporting ammunition unless you run into crimped ammo with bullets having deep crimping grooves. They are less useful with cast rifle bullets for a similar reason, and useless for many handgun bullets, so how useful the collet puller will be for you, depends upon the style of bullets you intend to pull. If you intend to pull a high volume of surplus rifle ammo, for Mexican Match where a different style of bullet replaces the FMJ, not only do heavy crimps have to be overcome, but also occasionally some sort of sealing compound as well. The collet won't hold the bullet tight enough to pull them. What I use for these are a pair of plyer style wire strippers/crimpers, the ones that have wide handles that will lie flat on top of the press, and have the wire strippers between the handles. These bite into the FMJs and allow them to be pulled with little damage to the bullet, typically it leaves a couple of small indents in the jacket, but if you aren't squeezing the handles tight enough, it'll strip copper from the bullet when you lower the ram. The FMJs can be loaded with low velocity loads for small game. Pulling apart pistol ammo is best done with a kinetic puller, but with heavily crimped light weight bullets, it can take a lot of pounding. I generally consider a kinetic puller a consumable item, so I don't worry about damaging the striking surface and get faster results striking a steel plate, anvil, or concrete than I do a wood block.