The 33 Nosler is a 33 (.338") caliber, rebated-rim centerfire rifle cartridge designed by Nosler. Introduced in 2016 (production release 2017), the 33 Nosler is a SAAMI approved and standardized cartridge. It is the fourth cartridge designed by Nosler.
Dec 05, 2019 · The 33 Nosler case holds 88.3 grains of water. To put that in perspective, the 338 Win. Mag. holds 78.6 grains of water, which means the Nosler has a 12 percent increase in case volume while maintaining the same 3.340-inch overall cartridge length. The 33 Nosler has a slight advantage in pressure as well.