.22 LR vs .300 Norma Magnum
A to-scale size comparison of the .22 LR and the .300 Norma Magnum, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.22 LR (left) beside .300 Norma Magnum (right), shown at the same scale.
The .22 LR has an overall length of about 0.98″ with a 0.224″ bullet. The .300 Norma Magnum runs about 3.68″ on a 0.308″ bullet. That makes the .300 Norma Magnum about 3.7x the overall length of the .22 LR. See the full reference for each: .22 LR and .300 Norma Magnum.