Took the smaller seal out only 630 fps. put the bigger seal in and back to 700 fps and more consistent POI , if I don't jerk I finished one tin of pellets and started another(same H&N 14.66gr.) off about an in. Had to rezero. . Saw a video that said to push a pellet threw the barrel and measure to see what size your barrel is? Pushing the pellet threw, it was tight then got lose then real tight as I pushed it out.. Is that normal ?
