This is one of those places were reloaders and shooters get separated.
I had a large stash of once-fired 308 brass from the same lot. I carefully prepped each case, (trimmed, squared primer pockets, de-burred flash holes, the works). I confined that brass to one (bolt action) rifle and neck sized only. Life was good.
But after many cycles through that rifle, it was time to relagate that brass to the M1A.
I'm generally able to recover most of the spent casings from the M1A but like any semi-auto, you're going to lose some percentage.
Even with the knowledge that the brass has provided good service, it still stings a little to lose some.
I think that's the difference between someone who is a shooter verus someone that is a shooter AND reloader.