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Starline Straight Walled Unfinished .223 Remington Brass

As you know, forming the neck, shoulder and taper of the cartridge case is a process that is done after drawing the straight walled brass of proper diameter and length. Starline now offers .223 Remington brass that hasn’t passed the neck and shoulder forming process. It is basically a straight walled case of .378 diameter and 1.8″ length. They call it .223 Un-Tapered brass.

Note the headstamp of these cases with only “stars and lines” and no caliber stamped.

Starline’s target market for this half-made brass are the wildcatters. This brass comes with no caliber designations on the case head. The Un-Tapered brass is also not annealed and will require annealing before forming into any wildcat caliber. The neck and shoulder area may also need to be annealed after forming. The case wall thickness at the case mouth is .009. The neck thickness of formed cases will increase as a result of necking


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