6.8 Western vs .300 Lapua Magnum
A to-scale size comparison of the 6.8 Western and the .300 Lapua Magnum, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
6.8 Western (left) beside .300 Lapua Magnum (right), shown at the same scale.
The 6.8 Western has an overall length of about 2.96″ with a 0.278″ bullet. The .300 Lapua Magnum runs about 3.72″ on a 0.308″ bullet. That makes the .300 Lapua Magnum about 1.3x the overall length of the 6.8 Western. See the full reference for each: 6.8 Western and .300 Lapua Magnum.