I have read replies on this forum for quite a while and am sure some of you out there can help . I had my 22-250 M70 rebarreled with a top quality barrel but the groups now are erratic , the first three rounds might go 1/4 inch but the next two are 1 1/4 inch fliers, or the first three may not group well either. The action is bedded,the barrel is floating , the trigger is 2 lb ,the scope is a 36x weaver and I use bags front and rear so a trained monkey should be able to shoot at least 3/4 inch groups . I have been told the 1 in 10 twist is not compatible with the high velocity a 22-250 develops and am wondering if any on this forum have successfully used a rifle with a twist faster than 1 in 14 which all the factory rifles have. I have used projectiles from 40 gn to 70 gn and about six different powders loaded from suggested loads to maximum .Nothing works Is it that the twist is too fast ? What do you think .