Military twist rate is 1 in 200mm (1 in 7.87 inches). European manufacturers appear to have settled on a twist rate of 1 in 220mm (1 in 8.66 inches) for 6.5x55 SE sporting rifles at some time in the...
Type: Posts; User: ZG47
Military twist rate is 1 in 200mm (1 in 7.87 inches). European manufacturers appear to have settled on a twist rate of 1 in 220mm (1 in 8.66 inches) for 6.5x55 SE sporting rifles at some time in the...