44 Mag through 445 Super Mag

rodwhaincamo

New member
I read somewhere that you cannot or should not fire 44 Mags through a 445 Super Mag because they are made from 444 Marlin brass. I'm guessing there is more room for expansion in the chamber? I intend to reload soon and don't want to over stretch my brass. I was hoping to get a Contender rifle barrel chambered for 445, but shooting primarily mags.
 
Other super magnums

There have been other cartridges that were created by extending the length of existing magnum cartridges. Some of these are:

* The .327 Federal Magnum, based on the .32 H&R Magnum
* The .357 Remington Maximum, based on the .357 Magnum and virtually identical in dimension to the .357 SuperMag
* The .444 Marlin, a rifle round based on the .44 Magnum

Based on the .44 Magnum cartridge, a revolver designed for the .445 SuperMag can also fire .44 Magnum, and .44 Special rounds.
http://en.wikipedia.org/wiki/Super_magnum

The bullet diameters are also the same at .429, so I see it as safe to fire the 44 mags thru the 445. The 445 super mag is almost worthless if you can't fire 44 mag through it as well.
 
Who ever added that info at Wiki was wrong about the .444 based on the 44mag. The .444 Marlin was initially modeled after a strengthened and elongated .45 Colt, which was then tapered down to hold .429" slugs. When .444's are blown straight they hold .452-.454" slugs - which is then called the .450 Mongo.

The .445SM is an elongated .44Mag. Using .44mags in a .445SM is just like using .38spl's, 357mag, and 360DW's in a 357Max. The only concern to be had is the build up in the chamber.
 
From John Taffins' "the 445 Supermag" before 445 brass was available.
it used .444 Marlin brass cut to 1.600", and this brass being larger in diameter than .44 Magnum brass, was swaged and turned on a lathe until it matched .44 Magnum dimensions. The reason, of course, was to also allow the use of the shorter .44 Magnums in the same cylinder.

Jim
 
I realized I shouldn't have quoted the Wiki article thinking what if the info is wrong. I copied and pasted that info, and of course, it was wrong. My apologies. I'm glad someone could set the record straight.
 
That's the main problem with Wiki...it's information entered by individuals & packaged as something that can be easily construed as fact. I swear the larger the internet grows, the more diluted the facts become.:rolleyes:

Anyway, these guys set you straight...just don't let it happen again.:D LOL!
For an image comparison, here's the four Super Mags in a row...and yes, the cases are all the same length.
.357 Maximum (SuperMag) / .375 SuperMag / .414 SuperMag / .445 SuperMag

22c.jpg

e76.jpg


And as sort of a size comparison, here they are with other standard chamberings I had on hand.
.357 Mag / .357 SM / .375 SM / .414SM / .44 Mag / .445SM / .454 Casull
258.jpg

cd7.jpg
 
Winchester_73,

Please don't take my reply as to criticizing you personally, it was aimed at the person who added the info at Wiki.

While that places has lots of accurate tid-bits, it often has incorrect info too. :(
 
I'd sure love to find some 375 Super Magnum brass somewhere. My cousin gave me a set of Redding dies for that caliber, and I was going to return them to Redding for some cleaning / polishing and then order up an Encore barrel in 375, but I can't seem to find brass anywhere. Now I did score some 445 brass and plan to move forward on it.
 
.375 Super Mag.

To the best of my knowledge, there has NEVER been brass available headstamped .375 Super Mag. You have ALWAYS had to make your own brass from either .375 Winchester or .30-30 Winchester brass. You have to shorten them to 1.610" and thats IT!
 
Thanks for the info, 375. I know that there are some really nice bullets that could be fired in a .375 SM / Encore platform,,... probably better than the other cartridges in the SM lineup.
 
uhhh... why don't one of you fix the Wikipedia article...
Throw in a decent citation.
I would, but I have no idea what you are talkng about(why I am reading the thread:)
 
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