.22 LR vs 6.5-284 Norma
A to-scale size comparison of the .22 LR and the 6.5-284 Norma, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.22 LR (left) beside 6.5-284 Norma (right), shown at the same scale.
The .22 LR has an overall length of about 0.98″ with a 0.224″ bullet. The 6.5-284 Norma runs about 3.23″ on a 0.264″ bullet. That makes the 6.5-284 Norma about 3.3x the overall length of the .22 LR. See the full reference for each: .22 LR and 6.5-284 Norma.