.284 Winchester vs 28 Nosler
A to-scale size comparison of the .284 Winchester and the 28 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.284 Winchester (left) beside 28 Nosler (right), shown at the same scale.
The .284 Winchester has an overall length of about 2.80″ with a 0.284″ 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 .284 Winchester. See the full reference for each: .284 Winchester and 28 Nosler.