.308 Winchester vs .338 Edge
A to-scale size comparison of the .308 Winchester and the .338 Edge, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.308 Winchester (left) beside .338 Edge (right), shown at the same scale.
The .308 Winchester has an overall length of about 2.81″ with a 0.309″ 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 .308 Winchester. See the full reference for each: .308 Winchester and .338 Edge.