.300 PRC vs .338 Winchester Magnum
A to-scale size comparison of the .300 PRC and the .338 Winchester Magnum, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.300 PRC (left) beside .338 Winchester Magnum (right), shown at the same scale.
The .300 PRC has an overall length of about 3.70″ with a 0.308″ bullet. The .338 Winchester Magnum runs about 3.34″ on a 0.338″ bullet. That makes the .300 PRC about 1.1x the overall length of the .338 Winchester Magnum. See the full reference for each: .300 PRC and .338 Winchester Magnum.