Your right... My mistake from reading too fast...Should have never taken that 'speed reading' class...My mind works faster than my fingers can type and that's where most of the confusion comes in...
I do have a 1/9 twist AR and it loves the 50-64gr bullets, but will handle them from 40-70gr, just not with the accuracy factor of the 50-64 grainers...
Sorry for screwing up the thread..