I've had good results with RE15 in my 1:12 twist 20" LTR. 40.2 grains is my current pet load with Federal brass and 168 HPBT pills. Have some <1" 200 yd 5-rd groups to show for it. Just FYI This load, although just 0.2 grains above the "min" suggested load in the Lyman data book, is still...