.243 Ackley Improved vs .338 Edge
A to-scale size comparison of the .243 Ackley Improved and the .338 Edge, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.243 Ackley Improved (left) beside .338 Edge (right), shown at the same scale.
The .243 Ackley Improved has an overall length of about 2.71″ with a 0.243″ bullet. The .338 Edge runs about 3.82″ on a 0.338″ bullet. That makes the .338 Edge about 1.4x the overall length of the .243 Ackley Improved. See the full reference for each: .243 Ackley Improved and .338 Edge.