Stickbowjoe. My question would be what kind of brass are you reloading and caliber? If its military, once fired, then uniforming the pockets may be necessary. I've found LC-04 brass (5.56 x 45) to have deeper pockets than WCC, but both have been too shallow for civilian primers. Good idea to check pocket depths before seating any primers, unless you're already familiar with your brass. I use the tail end of a good digital caliper for that. Once the depths are correct you shouldn't have to mess with them again, other than, perhaps, cleaning. For small rifle primer pockets .122" depth should be plenty. I do a strong .120" to a weak .121", just to be safe. My LC brass has been showing anywhere from .1175" to .1190" before uniforming and would leave my primers about flush with the case head or very slightly recessed. The WCC brass even shallower at .115" to .118" would leave primers protrude (not good!), especially with CCi #43. Remember; recommended primer pocket depths vary with what you are shooting. Regarding the dismantling of live ammo, I'll let others tackle that problem. By the way, I'm still a novice at this world of reloading, but have discovered some interesting things that the reloading books don't seem to address. I also want to thank people for asking questions and giving answers on this forum.
Ron