6.5 PRC vs .284 Winchester
A to-scale size comparison of the 6.5 PRC and the .284 Winchester, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
6.5 PRC (left) beside .284 Winchester (right), shown at the same scale.
The 6.5 PRC has an overall length of about 2.96″ with a 0.264″ bullet. The .284 Winchester runs about 2.80″ on a 0.284″ bullet. The two are close in overall length. See the full reference for each: 6.5 PRC and .284 Winchester.