.243 Ackley Improved vs 33 XC
A to-scale size comparison of the .243 Ackley Improved and the 33 XC, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.243 Ackley Improved (left) beside 33 XC (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 XC runs about 4.36″ on a 0.338″ bullet. That makes the 33 XC about 1.6x the overall length of the .243 Ackley Improved. See the full reference for each: .243 Ackley Improved and 33 XC.