Nice rifle you got there stump jumper. I've found that seating them closer to the lands (when it was a .22-250) improved the accuracy quite a bit on the 55 gr. rounds. That barrel was a 1:12 twist. This one is a 1:14 twist so it doesn't like the heavier bullets as much. I would have gotten a 1:8 or 9 but they were too expensive. I only paid $120 for this barrel.