44 Rem mag vs 44 auto mag

I don't think that they are exactly the same size, but similar dimensions. The main difference is that the auto mag lacks a rim. If my memory is correct the auto mag is based on a shortened 308 Win. case.
 
The Automag is a cut down .308 Win case that gets reamed/turned thinner(to an internal diameter of .428", .590" deep. It's 1.298" long with a rimless .470" case head and a .475" case mouth.
The .44 Mag is a rimmed(.514" dia rim) 1.285" long case with a .456" external case mouth and a .432" inner case diameter.
 
I have both the Smith model 29's, and also a 44 automag collection.

As for the 2 cartridges, the ballistic tables will show almost exact performance, and the 2 can use identical bullets and powder charge.

The big physical difference is in the brass, as stated earlier.

The big reality difference is that with the regular 44 mag, one can make full magnum loads, reduce down to practice loads and use a variety of bullets in weight and shape. The 44 automag has no tolerance for that, and one goes with a fixed load of about 22 to 23 grains of H110 and a 240 grain of XTP bullet (the best bullet design), much deviance and the automag will not cycle properly or if too high, destroy the bolt or blow up the gun.

The one fixed load that works is not really a problem, because it is the same as a regular 44 rem mag load anyway. For most shooters, these full loads in a Smith or Ruger is punishing after a dozen rounds, even with pachmayr grips.

The 44 automag will fire the same, but at about, imho, about 65% or so felt recoil and muzzle flip, and faster recovery time, with the same 44 factory full mag loadings, as compared to a revolver. Never owned or shot a desert eagle, but assume that it is bacause of the semi-auto's gas operation.

I understand a desert eagle won't blow up with factory mag loads all day, an automag can be risky, at about twice the price, (but if maintained, will always increase in value). The grip size of the automag is almost exactly that of a glock, yes, really.


It must be imported and one has to reload the automag cartridge (any factory automag cartridges out there cannot be trusted anyway). The grip size of the automag is almost exactly that of a glock, yes, really.

a couple of the best automag sites with more info, see the video clips

http://www.automagpistol.com/home.htm

http://biskun.com/hobby/index.html
 
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