Getting a new Uberti 1873 Win x 45 Colt. Need pressure / Load ideas
............I have a Rossi 92 and a Win Miroku 92, both in 45 Colt so I'm simply interested in what kind of 'Reasonable for the platform' loads I should be looking for with the M73. It's the 'Sporting Rifle' with a 24.25" bbl and I'm also not interested in having a jacketed slug stuck 3/4 of the way up the barrel :-) Surely 95% of the shooting will be with cast. Am I looking for pressures around 14K psi, or is 20K okay?
..............Buckshot
Getting a new Uberti 1873 Win x 45 Colt. Need pressure / Load ideas
Most experts will advise keeping 45colt loads in the 14,000cup range for any toggle link rifle.
I don’t have my load manual in front of me but I believe it lists the 1873 toggle link design as a Group 1, while it lists the Winchester 92 and Marlin 94 as a Group 2. Group 2 rifles are safe for higher level loads sometimes called “Ruger Only.” Best to stick with black powder level loads for Group 1 rifles.
The classic 250gr boolit with 8-9.0gr of Unique is right at the upper end of most 14,000 c.u.p. level load recipes. From my handguns this load chronographs around 850fps. I’d imagine from a 24” barrel this load would easily break 1000fps. That would be more than sufficient for any medium sized game provided the shooter does their part.
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