.243 Ackley Improved vs 33 Nosler
A to-scale size comparison of the .243 Ackley Improved and the 33 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.243 Ackley Improved (left) beside 33 Nosler (right), shown at the same scale.
The .243 Ackley Improved has an overall length of about 2.71″ with a 0.243″ bullet. The 33 Nosler runs about 3.34″ on a 0.339″ bullet. That makes the 33 Nosler about 1.2x the overall length of the .243 Ackley Improved. See the full reference for each: .243 Ackley Improved and 33 Nosler.