can a #1 Mk. 4 be converted into a 444

a303smoker

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can a person rebarrel a #1mk 3 into a .444 Marlin, I would never think of doing this with a rifle that would serve as a peice of history but this one the stock and barrel had been cut (bubbafied) and the barrel is bent also. are their any issues with the threads, are they a special cut ?, and will there have to be any work done to the ejector
 
a303smoker said:
can a person rebarrel a #1mk 3 into a .444 Marlin, I would never think of doing this with a rifle that would serve as a peice of history but this one the stock and barrel had been cut (bubbafied) and the barrel is bent also. are their any issues with the threads, are they a special cut ?, and will there have to be any work done to the ejector


I'm not sure what kind of pressures .444 operate at, but if as I believe that's a powerful calibre, the No 1 Mk III is a somewhat marginal action. For example it's not considered strong enough for .308 Winchester...I'd look elsewhere like a bubbaed P14 or a Mauser type action.
 
Max chamber pressure on the 444 is 42000, well below what the 303 British runs. Remember, the Marlin was designed to be run in lever actions.

The thread is Acme, buty that can be cut by any machinist.
Also note that this is being done commercially with the 45-70 cartridge in the US. The #1 action is in no wise weaker than the #4. Most of the changes were made for ease of manufacture, the rifles are designed to fire the same cartridge spec.
 
Anything can be done with enough time and money. Mostly money. You'd be looking at a completely custom made barrel. Finding a rifle length barrel blank with a .429" bore and the right rifling twist may be difficult. This guy makes a 25.8" one for $199.50US. Add the W's. lothar-walther.de/html/377.php
Then you'd just need a barrel vise, action wrench and headspace guages. You'd have to modify the bolt head and the mag too.
 
sunray said:
Anything can be done with enough time and money. Mostly money. You'd be looking at a completely custom made barrel. Finding a rifle length barrel blank with a .429" bore and the right rifling twist may be difficult. This guy makes a 25.8" one for $199.50US. Add the W's. lothar-walther.de/html/377.php
Then you'd just need a barrel vise, action wrench and headspace guages. You'd have to modify the bolt head and the mag too.

Everything considered wouldn't it make more sense to haunt the gun shows and buy a used .444 Marlin? Probably cheaper and definitely more desirable plus the action was designed to feed the shells.
 
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i picked up a 444 marlin for 400 bucks with two boxs of shells minus two shells. the ole fellow couldnt handle the kick..
 
oldbadger said:
Max chamber pressure on the 444 is 42000, well below what the 303 British runs. Remember, the Marlin was designed to be run in lever actions.

The thread is Acme, buty that can be cut by any machinist.
Also note that this is being done commercially with the 45-70 cartridge in the US. The #1 action is in no wise weaker than the #4. Most of the changes were made for ease of manufacture, the rifles are designed to fire the same cartridge spec.
the thread is Acme ????someone correct me if I am wrong but all Lee Enfield have a 60 degree v tread and 1 inches in diameter x 14 treads per inches
 
The Lee Enfield has usual 60 deg thread. It will handle pressures of .444 Marlin. Barrels are available thru Bits of Pieces, Surry, BC or Pac-Nor USA.
The bolt head and extractor needs no modification. Magazine I don't know about, it may work with little mod, or not at all.
Is a viable project in my opinion.
 
Sporting rifles based on Lee Speed actions were made in calibres other than .303 prior to the First War. Saw photos of a beauty in a rimmed .375 (NOT H&H). Magazine could be an adventure.
Factory .44 barrels can have a slow 1:38 twist for the light 240 gr. bullets used in factory ammunition. Go with a quicker twist, and there would be more options.
 
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