I wouldn't be concerned about round count. It all comes down to heat and how well you
Makes sense. I will not be shooting larger annual round counts, nor will I be emptying mags quickly. In fact, I bought 20 rd mags for my Sport to lessen the temptation a bit. And, at $0.35 - $0.40 per trigger pull, I'll be firing for accuracy and effect - not to lay down cover in my neighborhood (I hope!).
Any AR I have or will buy will be HD first, range therapy second, and small game hunting last.
"Figure Out What You Believe and STAND YOUR GROUND!"
Nemo Me Impune Lacessit
Lots of Cast Iron to Cook With...
and a few defensive firearms, too!