.243 Ackley Improved vs .375 EnABELR
A to-scale size comparison of the .243 Ackley Improved and the .375 EnABELR, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.243 Ackley Improved (left) beside .375 EnABELR (right), shown at the same scale.
The .243 Ackley Improved has an overall length of about 2.71″ with a 0.243″ bullet. The .375 EnABELR runs about 4.63″ on a 0.375″ bullet. That makes the .375 EnABELR about 1.7x the overall length of the .243 Ackley Improved. See the full reference for each: .243 Ackley Improved and .375 EnABELR.