I found a very accurate loading for my M&P: 3.6 grains of W231 with a 124 gr Lee TL cast lead bullet, lubed with Johnson Paste Wax and loaded to an oal of 1.12. This load grouped .65" off a bench at 7 yards as is soft shooting.
But, I can't get consistancy from group to group with the same load fired later in the day or the next day and I'm completely baffled. Groups will open up to 1.5". Clean barrel, in the middle of testing or at the end. It's driving me nuts. It isn't the "jitters", flinching or anything else. I get out my 45 1911 and put the shots in one hole, offhand, at this range.
rjs
But, I can't get consistancy from group to group with the same load fired later in the day or the next day and I'm completely baffled. Groups will open up to 1.5". Clean barrel, in the middle of testing or at the end. It's driving me nuts. It isn't the "jitters", flinching or anything else. I get out my 45 1911 and put the shots in one hole, offhand, at this range.
rjs