7mm SAUM vs 28 Nosler
A to-scale size comparison of the 7mm SAUM and the 28 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
7mm SAUM (left) beside 28 Nosler (right), shown at the same scale.
The 7mm SAUM has an overall length of about 2.83″ 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 7mm SAUM. See the full reference for each: 7mm SAUM and 28 Nosler.