.300 Remington Ultra Magnum vs 33 Nosler
A to-scale size comparison of the .300 Remington Ultra Magnum and the 33 Nosler, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
.300 Remington Ultra Magnum (left) beside 33 Nosler (right), shown at the same scale.
The .300 Remington Ultra Magnum has an overall length of about 3.60″ with a 0.309″ bullet. The 33 Nosler runs about 3.34″ on a 0.339″ bullet. That makes the .300 Remington Ultra Magnum about 1.1x the overall length of the 33 Nosler. See the full reference for each: .300 Remington Ultra Magnum and 33 Nosler.