This is exactly why C45S came about, the SASS guys wanted something that ejected faster, was more compatible than Schofield, and was more consistent with modern powders. It's basically a 45 Colt cut down to the length of a 45 ACP....or you can say it's a 45 ACP with a 45 Colt rim on it. Adirondack Jack worked the magic deal to get the headstamp die done (Cowboy 45 SPL) and Starline to make it. He then sold that brass, and ammo in it for years and years until he ultimately sold it to another business. It's still popular, and I shoot/load a lot of it myself, just because I get better accuracy from it out of all my Colt revolvers. It won't run reliably in repeaters though, without mods. Starline still carries it, it's a little bit more than 45 Colt, but usually available when Colt isn't.
Top Pic, the headstamp. Bottom pic, comparison, top to bottom: C45S, 45 ACP, 45 Colt.
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