From what I have seen, a light contoured barrel can walk shots after the barrel really heats up. This is why we shoot a 3 shot group not a 5. With a much larger countour barrel like a sendero, a guy can shoot a 5 shot group before you see any walking.
Brian
Brian
I've seen the same thing, owned rifles that behaved like that. I had a Rem Model 7 that would keep 5 shots in an inch if you were careful not to over heat it. Get it hot and the groups opened up to 3". I didn't think that was so bad for what I paid for the rifle.
The Kimber Montana I replaced it with wouldn't shoot as accurately 5-shots were generally 1.5", but it didn't make any difference how hot you got it. From stone cold to too hot to touch the shots didn't walk. Had it rebarreled w/ a Hart barrel and now it will put 5 shots inside an inch (most groups are less) as fast as you can pull the trigger. This is a considerably lighter contour than a #3.
David
