Utter Bullshit.Lead too, not just paint, and long marches with heavy loads. Bugs when it isn't cold. There's something I have faith in that you don't.
Since you want to put your dick on the table, I can guarantee you that I have fired more rounds of more flavors in professional settings than you have probably ever even seen.
For example my single shoot 7.62 top usage is around 18,000 rds. Hard give an exact count as we normally stopped counting after the first couple k. A average shoot for me in those days was easily 5k to 10k. For the record, I really don't like humping 7.62 around. Especially in the jungle.
For 5.56 single shoot top burn stands at about 5K. That particular day I remember well as my Tri-Point Tac Sling's forward loop melted off my M4. Had to pause several times in the cycles as the M4 got hot enough to cook of 30rd mags upon insertion. I also got a new barrel coming off that day. The armorers were not happy, as I had just gotten a new weapon for that particular trip.
I can tell similar stories regarding .45 and 9mm. Although to be honest I preferred .45, the HK semi-automatic crew served side arm is massive, but for me comfortable. (unless you put the friggin suppressor on it, then it hangs down past your friggin knee and almost requires a bi-pod.)
If you want to talk about 12 gauge, we can go there too. I have a not so found memory of a non-stop dynamic that ran me through 1200 rounds of mixed 00 and slugs. Not for the meek at shoulder that one.
Another favorite of mine is the M2. Having burned more rounds than I can remember, at close ranges (<500yds) it was my favorite, as it was like a laser.
You are full of it.