I've had a pre-'64 M70 Fwt. .30-06 for some time. Rifle is all original, no bedding modifications, etc. I can get 3-shot, 100 yards groups of an inch, sometimes a little less, as long as the barrel isn't hot. Recently, using the most accurate load I've found for this rifle, I fired a couple of groups that were around 5". I immediately figured the scope had gone bad and switched it. Group size with the different scope was identical. I cut a 1/4" strip about 1 1/2" long from a laminated card and forced it with some difficulty between the end of the forearm and the underside of the barrel - a very tight fit. The rifle immediately shot better than it ever has in the past, but I don't know how permanent my fix is.

Last edited by lotech; 04/01/20.