I use the 45 ACP Tipton Snap Caps and couldn't be more pleased. They have a spring loaded primer plate that offers the type of resistance the firing pin will encounter during actual firing. I keep them in both of my 1911's just for protecting the firing mechanisms. They never fail to load from a clip, even in my "finigy" Kimber. I esspecially like using them for training while utilizing my Laserlyte LT-PRO which I purchased from Opticsplanet.com. Mine are several months old and show no signs of anything but a lond, dependable life.
Pros: Loads easily, fool proof, durable
Cons: Wish there was a larger quantity "value pack"
This review was written in the old system and had content requirements that are different than reviews written today.