6.5 PRC vs 6.5-284 Norma
A to-scale size comparison of the 6.5 PRC and the 6.5-284 Norma, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
6.5 PRC (left) beside 6.5-284 Norma (right), shown at the same scale.
The 6.5 PRC has an overall length of about 2.96″ with a 0.264″ bullet. The 6.5-284 Norma runs about 3.23″ on a 0.264″ bullet. That makes the 6.5-284 Norma about 1.1x the overall length of the 6.5 PRC. See the full reference for each: 6.5 PRC and 6.5-284 Norma.