Or, at least just add a comment here if the 'shaving' modifications didn't make any measurable improvement. Maybe 5-10 thousandths shims would have worked to raise the barrel in the stock slightly to gain more barrel to stock clearance without modifying the stock?If my range testing shows a measurable improvement in group size of number of fliers I'll post the results on the Forum. The modification is virtually unnoticeable and now the barrel floats for sure within a 15 thousandths range.Another possible approach: I also tried putting.025 shims under the bedding bolt points but that caused feeding jams. It would just pass a smooth dollar bill (about.004'), but not two bills.It was very easy to remove the barrel and use a sharp knife held at 90 degrees to shave about 10 thousandths off the left side of the stock.Now I have about 15 thousandths clearance on the left and about 80 on the right. 450 Bushmaster is a handy, lightweight rifle packing a major-league punch for big game and homestead defense. An obvious mfg defect! I bought one with about 4 thousandths clearance on the left and about 80 thousandths on the right.
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