.300 PRC vs .338 Lapua Magnum
A to-scale size comparison of the .300 PRC and the .338 Lapua Magnum, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.300 PRC (left) beside .338 Lapua 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 Lapua Magnum runs about 3.68″ on a 0.339″ bullet. The two are close in overall length. See the full reference for each: .300 PRC and .338 Lapua Magnum.