This is my first time doing this, so I took my out my 9" MCX in 300 BLK to work up a load. Shot off a bipod at 100 for the first time and slapped a 3-18 scope on there (I shoot this thing in close with an aimpoint or irons). Using CFE BLK and 155 Palmas, the best 3 shot group was just over an inch. 2 of the groups on the hot side shot ascending, traveling up 4" from the first to last shot. It almost looks like a loose scope mount, but I think it was on tight enough. Shot suppressed, no endcap strikes or anything. The center group is the best, so is this about what to expect out of a 9" BLK, maybe fine tune it a bit? The loads were shot 20 gr - 18 gr descending in .5 increments, top left, low left, middle, top right, and low right