This may be a totally stupid question with a very simple answer but I'm looking for some input and feedback. I dry fire a lot- no close ranges and too little time so I try to dry fire at least three times a week. Clearly every time I dry fire I'm unloading and then reloading for carry when I'm complete. To keep from having setback issues, I try not to load the same round more than twice (the initial loading and then the next time when I actually fire it). With 500 rds of carry ammo I see that as 500 times to to load that lot of ammo for carry conditions. I guess if I was actually downloading and then reloading 3 times a week a 500 round lot would last 3 years if I do the math right at which point its probably time for some fresh ammo. Maybe I just answered my own question. What do you guys think?