7mm PRC vs .300 Winchester Magnum
A to-scale size comparison of the 7mm PRC and the .300 Winchester Magnum, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
7mm PRC (left) beside .300 Winchester Magnum (right), shown at the same scale.
The 7mm PRC has an overall length of about 3.34″ with a 0.284″ bullet. The .300 Winchester Magnum runs about 3.34″ on a 0.309″ bullet. The two are close in overall length. See the full reference for each: 7mm PRC and .300 Winchester Magnum.