.243 Ackley Improved vs 28 Nosler
A to-scale size comparison of the .243 Ackley Improved and the 28 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.243 Ackley Improved (left) beside 28 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 28 Nosler runs about 3.34″ on a 0.284″ bullet. That makes the 28 Nosler about 1.2x the overall length of the .243 Ackley Improved. See the full reference for each: .243 Ackley Improved and 28 Nosler.