Absolutly! I think 250 to 300 rounds through a carry weapon is necessary to prove it reliable. I also believe a portion of range time should be spent practicing with the chosen carry ammo. I rotate out my carry ammo every six months and set aside ammo I've carried for this practice. Funny thing about that. Over the years I can't remember any failure of any type with ammo I've previously carried. That makes me wonder if I'm to anal about rotating it out of my carry weapons every six months. Anyone else find that to be true?
Actually rotating your carry ammo is a good idea, and since I carry every day, I rotate every 3 months. The generally accepted storage conditions for ammo is cool and dry, considerably different than what is found inside an IWB in the middle of a 90 deg summer day. Over time, that moisture, and/or oil residue from regular cleanings, can wick into the case. I am not sure it would be enough to cause a FTF, but I have no intention of finding out with my carry ammo.
wolfman