I don't rechamber the same round again for my SD ammo. I put a new round in the magazine and rack the slide to chamber a round in the barrel. I then put the chambered round in my range bag and shoot them off on my next trip to the gun range.
Wow, so you never rechamber a SD round more than once? Holy cow.
Do you just not clear your chamber or do you go through boxes of SD ammo a month? I mean if you can afford it more to you. Bet if you ever feel like selling those once chambered rounds, drop me a line.