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Thread: 444 Marlin & 44 MAG difference or similarities



  1. #1
    Cowpoke
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    444 Marlin & 44 MAG difference or similarities

    Someone please explain is there a difference in the handgun bullet of the 44 mag and the 444 mar.Or is it all the same as long as the diameter is .429 there are some at .430 And what do i look for if i want to load for the 444 Marlin and not the pistol caliber of the 44MAG? Sorry about all the idotic questions.

  2. #2
    Gun Wizard
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    If I'm understanding you correctly you can load 44Mag handgun bullets for the 444. Bullets like the Barnes XPB's will work just fine even at max 444 velocities.
    Team444 #228

  3. #3
    Marlin Marksman
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    If a bullet is designed for a 44 mag pistol or rifle it might open up or come apart at 444 marlin speeds.
    levernut1958 likes this.

  4. #4
    Deadeye
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    .444 Marlin chambers have an extremely short throat/leade. It may as well be considered a "no throat" situation. As such, the bullets used for .444 Marlin generally need a crimp groove or cannelure right below the ogive. ....but .44 Mag chambers/cylinders are not as restrictive.

    Some bullets designed for .44 Mag will not have a crimp groove in the proper location for use in .444 Marlin, but can still be used if they don't require a heavy crimp.

    Many bullets designed for .44 Mag velocites will fragment at .444 Marlin velocities.

    Depending on your bore diameter, .429" bullets may not engage the rifling enough to be properly stabilized. (Accuracy may be very poor.)
    Even in my rifle (.427" bore / .432" grooves), I occasionally recover .429" and .430" bullets that show clear evidence of 'skipping' or 'sliding' across the rifling lands.

    There are quite a few lead bullet designs for .444 Marlin, but not many jacketed bullets.
    Speer and Hornady are just about the only companies offering factory support of .444 Marlin, when it comes to jacketed bullets.
    Gallo Pazzesco likes this.

  5. #5
    Wrangler
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    What's the difference?

    For a given bullet weight - say 240gr. - 400 fps + -. That's it. No big deal velocity wise but quite a bit in energy. Remember Einstein E= MC squared (can't make the little 2).

    One case is longer than the other. That's it.
    Participating in a gun buy-back program is like having yourself castrated because your neighbors have too many kids.

  6. #6
    Wrangler
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    The difference between a 44 Mag and a 444 Marlin: An inch of brass and about 700 fps.

    They use the same size bullets .429" for jacketed, custom for cast.
    Some of the handgun bullets won't hold together on game at 444 speeds, but they can still
    be used for target practice or varmints/plinking.

    As said above, brass is available, just buy it as you can. Once you have some stocked up, it
    is much easier to find, and easier to find deals. The brass will last quite a while, too.

    The 444 is also just a fun round. Hard to explain.
    "I have a tendency against which I should, perhaps, be on my guard, to swim against the stream..." Winston S. Churchill

    Team 444-Member #315

  7. #7
    Cowpoke
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    What im wondering about are both bullet used in the 44mag and the 444 marlin and vise versa.

  8. #8
    Cowpoke
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    Quote Originally Posted by CaptainMal View Post
    What's the difference?

    For a given bullet weight - say 240gr. - 400 fps + -. That's it. No big deal velocity wise but quite a bit in energy. Remember Einstein E= MC squared (can't make the little 2).

    One case is longer than the other. That's it.
    What it boils down to is bullet construction. You need to stay away from the light fragile HP's when shooting them in a .444, because they will come apart at high velocity

  9. #9
    Marlin Marksman
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    Short answer yes, with exceptions.

  10. #10
    Gun Wizard
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    Bullets designed for pistol speeds may over expand at rifle speeds when they hit the target. Heading said that I and a buddy have shot many deer with pistol bullets at rifle speeds and they work like magic on #150 deer. It might not be a good choice on elk or brown bear but deer the 240 grain sierras are gold. You can also use trail boss powder to load 444s with pistol bullets at pistol speeds. It turns a big marlin lever into a pop gun that anyone can shoot. The 444 brass are easier for my flub finders to load than "stubby" 44 mag.
    If you decide on the 444 you need to handload and buy a quantity 100-200 brass.


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