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Thread: Stretching that 44 mag case

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    Stretching that 44 mag case

    SOMEWHERE................ I read that their is another rifle case that uses the same shellholder and has the same diameter as a 44 mag case. looking to make longer brass for shot loads for my ruger sbh revolver.

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    445 Super Mag

    Attachment 190121

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    Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle primers.

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    I've been cutting down .444 cases and .303 Brit cases. I also use a cutdown .410 shotgun wad for the shot. Top it off by crimping a piece of card stock, cut to size, over the shot, and a few dribbles of candle wax to hold it in place.

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    1.600 - 1.610 O.A.L.

    152.50 for 250 pieces of brass from Starline.

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    And by the way, the .445 Super Mag is a blast to shoot!! We even had a pretty lady shooting one at one of the NCBS get togethers.
    It really puts the knockdown on a swinging steel plate!

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    Kinda reminds me of the old .357 Maxi, i sure wish i could have bought one of the Rugers before they halted production of them, they cost a small fortune now days when you see one, kinda like a nice Pre 64 Winchester

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    Quote Originally Posted by obssd1958 View Post
    I've been cutting down .444 cases and .303 Brit cases. I also use a cutdown .410 shotgun wad for the shot. Top it off by crimping a piece of card stock, cut to size, over the shot, and a few dribbles of candle wax to hold it in place.
    this is what I was looking for, thank you. what do I have to do to the 303 brit brass to load for my 44 mag?

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    I have some in process. I found that i needed to thin the rim, and reduce the diameter slightly so they fit my Ruger SBH.
    Last edited by William Yanda; 03-11-2017 at 07:43 PM. Reason: add make/model
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    Quote Originally Posted by triggerhappy243 View Post
    this is what I was looking for, thank you. what do I have to do to the 303 brit brass to load for my 44 mag?
    Cut it slightly shorter than cylinder length and expand it. It has been so long since I did cylinder length loads for the .45 Colt, I don't remember if you have to turn the rims narrower or not. You can check that when you have the cylinder out.

    Robert

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    Quote Originally Posted by triggerhappy243 View Post
    SOMEWHERE................ I read that their is another rifle case that uses the same shellholder and has the same diameter as a 44 mag case. looking to make longer brass for shot loads for my ruger sbh revolver.
    Slightly larger rim, but the .30-40 Krag case diameter is perfect.
    Some people try to turn back their "odometers." Not me. I want people to know why I look this way. I've traveled a long way and some of the roads weren't paved.

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    I've done it with 444 Marlin brass, I have also done the 303 route. Using 303 the case is very thick, which.....reduces payload a bit.

    Using the 444 Marlin requires a lathe to turn down the body right next to the rim. I can get a 30% increase in payload using the 444 Marlin, but I can't remember how much I got in the 303 British.

    I use a special die for the crimp though, it's called a notching die which cycles great in rifles.

    Hardest part when coming up with ideas.....trying to come up with a cheap parent case, it's not as easy as you may think.

    After thinking a bit about what 54bore wrote, that's a case I didn't even consider. Guess I'll need to try the 445 case since it's even cheaper than what I'm using right now.
    Last edited by GRUMPA; 03-11-2017 at 09:23 AM.
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    Quote Originally Posted by GRUMPA View Post
    I've done it with 444 Marlin brass, I have also done the 303 route. Using 303 the case is very thick, which.....reduces payload a bit.

    Using the 444 Marlin requires a lathe to turn down the body right next to the rim. I can get a 30% increase in payload using the 444 Marlin, but I can't remember how much I got in the 303 British.

    I use a special die for the crimp though, it's called a notching die which cycles great in rifles.

    Hardest part when coming up with ideas.....trying to come up with a cheap parent case, it's not as easy as you may think.

    After thinking a bit about what 54bore wrote, that's a case I didn't even consider. Guess I'll need to try the 445 case since it's even cheaper than what I'm using right now.
    I would think a guy could contact Starline and ask about buying 50 or so brass instead of 250, wouldn't hurt as bad on the wallet, but 152.50 for 250 brass is actually a darn decent deal! And Starline is top of the line brass

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    I just checked midway and they have the .445 Super Mag Starline Brass for .50 Cents a piece, 49 something for 100

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    Quote Originally Posted by 54bore View Post
    I just checked midway and they have the .445 Super Mag Starline Brass for .50 Cents a piece, 49 something for 100

    I have a thread in the WTB section for the 445 Brass. I was going to post a thread on making them from 444 Marlin brass till you posted about 445 brass. The 445 brass is even cheaper than 444 brass, but I only have 444 Marlin brass here at the moment. I want to compare the payload side by side before I go diving into this conversion. The 414 Super Mag I use for the 41Mag shot load came out nice.
    Click to see what I'm doing and have available, this takes you to the VS (Vendor Sponsor) section of the site. Currently..25Rem,30Rem, 32Rem, 35Rem, 257Roberts, 358Win, 338Fed, 357 Herrett, 30 Herrett, 401 Winchester, 300Sav, 221 Fireball, 260Rem, 222Rem, 250 Savage, 8mm Mauser (AKA 8x57), 25-20WCF

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    Quote Originally Posted by GRUMPA View Post
    I have a thread in the WTB section for the 445 Brass. I was going to post a thread on making them from 444 Marlin brass till you posted about 445 brass. The 445 brass is even cheaper than 444 brass, but I only have 444 Marlin brass here at the moment. I want to compare the payload side by side before I go diving into this conversion. The 414 Super Mag I use for the 41Mag shot load came out nice.
    GRUMPA, Keep us updated and let us know how it turns out, hope you can find a few pieces of brass to try! No need buying a bag of it until you know how it's gonna work? I bet the .445 Super Mag works perfect!

  17. #17
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    Quote Originally Posted by GRUMPA View Post
    I have a thread in the WTB section for the 445 Brass. I was going to post a thread on making them from 444 Marlin brass till you posted about 445 brass. The 445 brass is even cheaper than 444 brass, but I only have 444 Marlin brass here at the moment. I want to compare the payload side by side before I go diving into this conversion. The 414 Super Mag I use for the 41Mag shot load came out nice.
    What's your load and process for the .414 Super mag / .41 mag load?
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  18. #18
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    I'll make a thread later on that. Keep in mind that I use a special form die called a notching die when I close the case mouth.
    Click to see what I'm doing and have available, this takes you to the VS (Vendor Sponsor) section of the site. Currently..25Rem,30Rem, 32Rem, 35Rem, 257Roberts, 358Win, 338Fed, 357 Herrett, 30 Herrett, 401 Winchester, 300Sav, 221 Fireball, 260Rem, 222Rem, 250 Savage, 8mm Mauser (AKA 8x57), 25-20WCF

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  19. #19
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    I used R-P brass for the .303 British. I cut it down to just smaller than the length of the cylinders on my Ruger NM super Blackhawk, which turned out to be 1.680".
    I just measured the rims of some R-P .44 Mag brass, and they measured .054" thick.
    The rims of the R-P .303 Brit brass measured .059" thick. I didn't have any trouble with the cylinder turning, no binding, using that brass.

    Hope this helps!

    Don

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  20. #20
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    WELL HERE IS AN UPDATE, A FELLOW SHOOTER GAVE ME ABOUT 60 PIECES OF 303 BRIT BRASS. THE RIM DIA. NEEDS TO BE TURNED DOWN A BIT, TIL THEN i CANNOT SEE IF THE CYL. WILL SPIN FREELY. ONCE I CUT THESE TO LENGTH, DO I NEED TO EXPAND THESE ANY?

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
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