WOW! That was fast. I love this forum. Thanks for the information and the rapid responses. I have had decent groups shot with RL 15 and the 165 grain Nosler Ballistic tip bullets; but you know how it is! I remember that ONE fantastic (the very first) group fired thru this rifle and like chasing my first love, I am trying to recreate that initial conquest. Thanks again......there seems to be endless resources of information here.