6.5 Creedmoor vs .308 Winchester
A to-scale size comparison of the 6.5 Creedmoor and the .308 Winchester, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
6.5 Creedmoor (left) beside .308 Winchester (right), shown at the same scale.
The 6.5 Creedmoor has an overall length of about 2.83″ with a 0.264″ bullet. The .308 Winchester runs about 2.81″ on a 0.309″ bullet. The two are close in overall length. See the full reference for each: 6.5 Creedmoor and .308 Winchester.