Gentlemen,the gun was originally proofed at a bore diameter between .719 and .729 . If it now measures .770 all the way from the forcing cones to the start of the choking,at least 20-25 thou of metal has been removed from the barrel walls. This is a serious amount of metal. It may have been built to handle the heavy magnum loads of the day but this gun needs to be measured carefully from
chambers to muzzle. Barrel wall of .032 is fine from the middle of the barrels to the muzzle, but not so fine directly ahead of the chambers.... You need to know what amount of metal you have, at, and near the chamber where the real pressures are.It may still be safe to shoot light and low pressure loads but its magnum days could be over....
