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Custom Mosin build. Need help with caliber. Don’t hate.

Discussion in 'Rifle Country' started by Thisisyourcaptin, Apr 4, 2019.

  1. Goosey

    Goosey Member

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    That sounds a little scary to me. I've seen a photo of one in .300 WM, though.
     
  2. Joshua M. Smith

    Joshua M. Smith Member

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    Hello,

    The consensus seems to be that the chamber area is too short for much longer than the 54r case. If you ream it for a x63, you're putting a lot of pressure beyond the chamber area. I personally wouldn't do it.

    That said, folks shot the Bannerman conversions.

    Regards,
    Josh
     
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  3. Buckeye63

    Buckeye63 Member

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    I read on a forum once, about a fellow having his Mosin rebored to 9.3 ..making a 9.3x54r
    Since you are rebarrelling you have alot of options
     
  4. Robbins290

    Robbins290 Member

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    I have seen one chambered in 44 mag. i would assume the rims are close to the same as the guy said he only changed the barrel and had a spacer made for 44 mags
     
  5. Thisisyourcaptin

    Thisisyourcaptin Member

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    Yeah I would deff go for a new barrel over rechambering or reboring mine. Mine is shot out. And the riffling very poor. But like you said extending past the chamber area is not a great idea either.

    I’ve seen that. Read all through it too. I just don’t really want to dabble in it. I don’t reload enough and know a lot about coming up it’s my own loads and dies and what not. This will keep things simpler. Plus for a hog gun the 7.62x54r is just fine.
     
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  6. Thisisyourcaptin

    Thisisyourcaptin Member

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    You know I didn’t think of that. Now you have me intrigued. Would be legal for hunting in Ohio too.
     
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  7. Robbins290

    Robbins290 Member

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    Glad i helped. I tried to find the article, but could not. I would love a mosin in 44. even if it was just a single shot
     
  8. Joshua M. Smith

    Joshua M. Smith Member

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    On the other hand, I have thought about building a brush gun in 9.3x53r. It's a fairly popular European hunting cartridge.

    Seems to me an M44 chambered in 9.3x53r, outfitted with a fiber-optic red front sight and with a widened u-notch rear, would make an ideal brush gun.

    I like the idea of having a pointy thing on the end when tangling with critters close-quarter.

    Regards,
    Josh
     
  9. Thisisyourcaptin

    Thisisyourcaptin Member

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    I guess I’m not sure how to neck up to the 9.3 diameter. Never seen it done before. Would be neat as hell. But how do you even go about having the chamber reamed or board for it?
     
  10. theotherwaldo

    theotherwaldo Member

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    Yeah, a M-91 would make pretty good boar spear right out of the crate.
    Just mount the bayonet.
     
  11. Sovblocgunfan

    Sovblocgunfan Member

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    The MG barrel referred to on page 1 was for the UK59 machine gun. A heavy bull barrel profile, it came chambered in 7.62x54r and was well received for its ability to mate right up with a mosin receiver. Most of the time, the indexing was right on and only minor adjustments were required. Prized by precision shooters.
     
  12. Thisisyourcaptin

    Thisisyourcaptin Member

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    Yeah I have been keeping an eye out for one. Seems they have mostly dried up. I can’t find them anywhere.
     
  13. Joshua M. Smith

    Joshua M. Smith Member

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    Hello,

    There's a really good discussion here: https://www.africahunting.com/threads/the-sako-9-3x54r.47717/

    The 9.3x54r is a popular cartridge in Russia.

    I found this, as well: https://en.strobl.cz/DS9.3x54RHeb-ch4d-reloading-dies-3/
    "Excellent set of dies processed from a reputable manufacturer in the U.S.."

    I'd think a Finn barrel would be of large enough diameter to ream out to 9.3mm, if it turns out a 91/30 isn't.

    Regards,
    Josh
     
  14. Thisisyourcaptin

    Thisisyourcaptin Member

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    Last edited: Jun 13, 2019
  15. Thisisyourcaptin

    Thisisyourcaptin Member

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  16. Jim Watson

    Jim Watson Member

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    It would be a labor of love, but given the Timney trigger with safety, would it not be possible to turn down the cocking knob and maybe even fair in the hump of the striker rib to the contour of the receiver?

    There were flat gate conversions of Krags, would it not be possible to flush cut the magazine? Two plus one should be enough for hunting. John Taylor suggested that repeaters should be limited to one plus one, like his favored double rifles.
     
  17. Thisisyourcaptin

    Thisisyourcaptin Member

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    Turning down the rear handle has been done. And is on my list of things to do. Maybe even file down the top to math the level of the receiver.

    This one is close to my ultimate build.


    As for converting to 2/3 shot and getting rid of the lower mag. That has been done too. Not ver hard either if you have the time. I don’t right now but it is something I have planned out. Last one I saw that had this done had no lower bottoms metal other than a trigger guard.


     
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  18. Jim Watson

    Jim Watson Member

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    The latest in silk purses. Great if you can do it yourself.

    Re caliber: I know about the 9.3 Finn, but plain old 7.62 will do anything a .30-06 or 8mm can. With iron sights, I would be loading the 215-220 grain bullets of .303 or Krag, depending on barrel.
     
  19. Thisisyourcaptin

    Thisisyourcaptin Member

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    Yeah 9.3 or 9.5 even would lots of fun. But I’ve decided to not go down that rabbit hole. Next up is a new barrel from McGowen. From there I will look more into ammo. This barrel is almost smooth. Shots about 1 foot groups. Lol.
     
  20. theotherwaldo

    theotherwaldo Member

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    I wonder how well a Mauser-type magazine bottom metal, spring and follower would work in this single-stack format?
     
  21. Thisisyourcaptin

    Thisisyourcaptin Member

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    Not sure. I have an extra though. Big “issue” so to speak is the Mauser is double stack. And retains the rounds in the mag a bit diff that a Mosin which is single stack. Would be a neat challenge for sure though.
     
  22. mokin

    mokin Member

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    Nothing to add to the conversation...

    Those are some very pretty rifles, Thisisiyourcaptin.
     
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