Special Interests - Groups & Societies > The Winchester Model 1873

Uberti 1873 toggle action and magnum loads

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Coffinmaker:

 :)  Hi David  ;)

That's a pretty fair WAG (Military Acronym of Wild Ass'd Guess) but is unsubstantiated.  You'd need some really sophisticated test equipment to determine the actual answer.  It's actually academic only.

The rifles in question, Uberti 1873, chambered 357 Magnum and Miroku 1873, chambered 357 Magnum, were designed for and proofed for 357 Magnum ammunition.  The guns will digest it all day long.  Consider this:  The Uberti 1873 is also chambered for full wallop 44 Magnum and suffer no ill effects.

Now the reality check.  NONE of the straight wall pistol cases actually expand sufficiently to completely seal the chamber.  Should you doubt that, simply inspect the Bolt Face, front face of the Carrier Block and the barrel Breach Face after 50 or so rounds.  38 Spl, 357, 44 Spl, 44 Mag, 45 Colt, no matter.  ALL suffer Blow By.  In handguns, ALL of those cases move to the rear at initial ignition, to rest on the recoil shield, then the cylinder moves to the rear to reseat the cases in the chamber.  The same thing happens in a Rifle (sorta). The case moves to the rear the amount of Headspace at the bolt and stays there.

Worry not about shooting 357 Ammunition (SAAMI Spec) in a Toggle Link Rifle.

Trailrider:
How much adherence of the cartridge case to the chamber wall depends on the peak pressure, strength of the brass (thickness and anneal will affect this).  That said, the toggle-link action is stronger than most people think.  Take the sideplate off one of those rifles and note the line of backthrust runs straight through from the bolt to the shoulders of the receiver.  (The rear link should contact the shoulder. Unfortunately, in some instances it does not, so the force is taken up by the pivot pin. The pin then takes the force in shear with some bending. If strong pins are in place, such as if the pins are hardened drillrod, the pin won't bend, nor shear.)  The P08 Luger is a toggle-link action, and there was at least one rifle design of the same type that was chambered for .276, as was the original Garand, before Army Chief of Staff Douglas MacArthur ordered it chambered for .30-06. I'm not sure I would want to subject the "brass" framed guns to repeated highpressure loads due to possible deformation of the shoulders, but a steel receiver '73 should have no problems with .44 Mangle-em factory loads, IF Uberti guarrantees them for that level.

Bryan Austin:
It does interest me that these "wives tales" do remind me of the Liberal Media. When an incident happens, the "media" actually reports the incident in such a way that they actually manipulate how people view what happened.

If you buy a Corvette and run it whole dog all day long every day, will it wear-out? If you take a Chevy Chevette and try to run it like a dragster, what will happen?

If it is stamped 44 Magnum, it will digest 44 Magnum loads...if it is stamped 357 Magnum, it will digest 357 loads.

I perform "annual inspections" on my firearms they same as I do my airplanes! In other words, preventative maintenance is your best friend.

Coffinmaker:

 >:(  Hello Bryan   >:(

I find your reference to "Liberal Media" to politicize a rather simple subject to be really annoying.  Especially since you're entirely "off base."  Political dissertations have no place in our context.

 

Bryan Austin:

--- Quote from: Coffinmaker on April 22, 2021, 09:55:05 AM --- >:(  Hello Bryan   >:(

I find your reference to "Liberal Media" to politicize a rather simple subject to be really annoying.  Especially since you're entirely "off base."  Political dissertations have no place in our context.

--- End quote ---

I rest my case!

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