6 Dasher vs 28 Nosler
A to-scale size comparison of the 6 Dasher and the 28 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
6 Dasher (left) beside 28 Nosler (right), shown at the same scale.
The 6 Dasher has an overall length of about 2.25″ with a 0.243″ bullet. The 28 Nosler runs about 3.34″ on a 0.284″ bullet. That makes the 28 Nosler about 1.5x the overall length of the 6 Dasher. See the full reference for each: 6 Dasher and 28 Nosler.