early .33 WCF loadings
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early .33 WCF loadings
Whelen's 1918 book says the .33 WCF was 200 gn at 2056 fps, not the 2200 fps often stated for this round. Does anyone here have an old Winchester catalog, circa 1903, showing what the factory was claiming for the early loads?
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Yes, I do have the catalog (reprint) but I could not find it! Figures, such is life.
I can do better than that as I have chronographed original Peters ammo from the 1930's and it averaged 2140 @ 55 degrees according to my notes. The handload that I use to duplicate factory velocity is 44 grains of IMR 4895 and that load averages 2160 @ 40 degrees. Its slightly warm so be careful. I keep it that way because its my elk load that I use, usually at 10-20 degrees. My usual load when I just NEED to shoot the old '86 in the summer is 42 gr. of IMR 4895 which averages 2050 @ 60 degrees.
My rifle is the standard 24" barrel.--------------Sixgun
I can do better than that as I have chronographed original Peters ammo from the 1930's and it averaged 2140 @ 55 degrees according to my notes. The handload that I use to duplicate factory velocity is 44 grains of IMR 4895 and that load averages 2160 @ 40 degrees. Its slightly warm so be careful. I keep it that way because its my elk load that I use, usually at 10-20 degrees. My usual load when I just NEED to shoot the old '86 in the summer is 42 gr. of IMR 4895 which averages 2050 @ 60 degrees.
My rifle is the standard 24" barrel.--------------Sixgun
Thanks for the info. I'd remembered reading elsewhere the early .30 WCF loads were no where near what the factories claim today, and for that reason I could believe Whelen's number. That 2150 or so Sixgun has found in practice seems right as well, for Sharpe was listing that range as the old (circa 1950) SAAMI reference load. I imagine advances in powders made it all possible. It makes me wonder what sort of pressures the original Krag military rounds were running at; it was faster than some of the later sporting rounds.