I have a couple of pounds of 2520 and Im hoping to get some good results in my AR10 with a 168 just for general shooting. My biggest fear? It will end up being great, and I wont be able to find it in quantityI've had good luck with AA2520 in my 308's.I shoot the kinda new 169 grain Matchkings with excellent results.It seems to be very stable,especially for a ball powder,and it's a lot easier to meter in a powder measure.I don't shoot long range a lot this time of year,but when I get going in the spring,I'll be shooting more 2520 than Varget.