224 Valkyrie
Since 1976

Unprimed Brass Cases

45-90 Brass (.45-2.4) (Large Rifle primer)

45-82 Win, 45-85 Win,45-90 Win, 45-90 Winchester
2.396 - 2.402 O.A.L.

This is a .45-70 based case that is 2.4 inches long and is suitable for smokeless or black powder loads. When loading with black powder, annealing of mouth may be necessary to allow case to properly seal chamber due to lower pressures generated by these loads. Our case is produced very strong to withstand high pressure loads associated with smokeless hunting loads and since the only way to make brass harder is to work the material our only option is to leave them stiffer so the customers can anneal for specific application. See annealing procedure in Commonly Asked Questions, section #4.

Status: Available Now

Box of
45-90 Brass (.45-2.4)

*Starline Brass does not sell any loaded ammunition. What you are purchasing are brass cases only and will need to be loaded into ammunition in order to be fired from a firearm.


Overall Rating
5 Stars5 Stars5 Stars5 Stars5 Stars
Reviews: 4
Alfred T of Broomfield, Colorado
5 Stars5 Stars5 Stars5 Stars5 Stars
Excellent brass, tried on my 1886 Win. Rifle and trial boss powder.... awesome!!!!

Stuart V of FREDERICKSBRG, Texas
5 Stars5 Stars5 Stars5 Stars5 Stars
While I do not have a 45-90 yet, purchased 45-90 brass to reform to 40-82 WCF. After annealing, re formed the brass to 40-82 WCF directly with the same caliber die, no rejects. Since then, recently purchased a 38-70 WCF. After annealing, reformed the brass with same caliber die, no rejects. A necessary preparation I have learned in reforming brass: Using a chamfer tool on the outside of the case mouth is not enough, using a fine file at a flat angle to remove the last burr, one can feel in with a fingernail, will help prevent reject cases. Also, the shoulder vent hole included in some dies will ruin cases such as the 33 WCF when reforming.

Dave W of Wray, Colorado
5 Stars5 Stars5 Stars5 Stars5 Stars
It's been several years ago but I purchased three different brands of this caliber. Starline was by far the best in quality of materials and manufacturing standards. Have just recommended Starline to a good friend and recommend their products to others as well.

Wayne N of Conroe, Texas
5 Stars5 Stars5 Stars5 Stars5 Stars
Outstanding product, packaging, and service in every way.