From past experiences with different loads from very accurate rifles, I would suggest you shoot a few more groups before being too happy. I have had groups almost in one hole, and the next time out it shot almost an inch group. I have some 20 caliber bullets in 34 grain from Nosler, that occasionally shoot under .250, but was not consistent with a 20 TAC or my 204. I hope your results are as indicated in your post.
