.22 LR vs 6mm Creedmoor
A to-scale size comparison of the .22 LR and the 6mm Creedmoor, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.22 LR (left) beside 6mm Creedmoor (right), shown at the same scale.
The .22 LR has an overall length of about 0.98″ with a 0.224″ bullet. The 6mm Creedmoor runs about 2.80″ on a 0.243″ bullet. That makes the 6mm Creedmoor about 2.8x the overall length of the .22 LR. See the full reference for each: .22 LR and 6mm Creedmoor.