.223 Remington vs 30 Nosler
A to-scale size comparison of the .223 Remington and the 30 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.223 Remington (left) beside 30 Nosler (right), shown at the same scale.
The .223 Remington has an overall length of about 2.26″ with a 0.225″ bullet. The 30 Nosler runs about 3.34″ on a 0.309″ bullet. That makes the 30 Nosler about 1.5x the overall length of the .223 Remington. See the full reference for each: .223 Remington and 30 Nosler.