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Thread: My 45-70 barrel arrived...

  1. #21
    Happy Camper hcpookie's Avatar
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    I'd be curious to see a 9mm conversion with a broken barrel pin! Sounds interesting, because I can't figure out why a pin would break. I agree a higher-up pin would be the best solution, and it would be more like a pin setup in a G3 or VZ-58 that way. A smaller pin would then be usable.

    I have ordered a Shilen barrel blank and will use that instead of the Marlin barrel on my first build. It is HEAVY too. I'll soon be shipping it off to the smith with a big lathe
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  2. #22
    No Hope For Me 1biggun's Avatar
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    I wondered if the bolt wasnt slaming into the barrel or something when I read this. barrel pin will hold up to 308 loads in a Siaga and i assume the 30-06 is pined as well.

    if it holds up tp those rounds it will hold up to any 9mm build unless something is built wrong or the pin is not the same as an original.

    I have ordered a Shilen barrel blank and will use that instead of the Marlin barrel on my first build. It is HEAVY too. I'll soon be shipping it off to the smith with a big lathe
    SWEET!!! this will make a good shooter. how long are you going with???

    BTW have you seen the latest SGN there is a article on using 45-70 roe a bunch of differant rounds very interesing the 45-60 would be a good one IMOA

  3. #23
    Gunco Veteran muttman's Avatar
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    Quote Originally Posted by 1biggun View Post
    I wondered if the bolt wasnt slaming into the barrel or something when I read this. barrel pin will hold up to 308 loads in a Siaga and i assume the 30-06 is pined as well.

    if it holds up tp those rounds it will hold up to any 9mm build unless something is built wrong or the pin is not the same as an original.





    BTW have you seen the latest SGN there is a article on using 45-70 roe a bunch of differant rounds very interesing the 45-60 would be a good one IMOA
    on the 9mm build, one cause was the barrel was too small (no press fit) or the wroung type of steel used for the pin i.e. dawl pin. that type of pin will not take a side load if there is some slop with the barrel to trunion fit.

    the SGN artical is a bummer for me. I had high hopes for a 9x54r bolt gun but now I see their is a round that is close to mt idea, 9.5x54r I think.

    muttman

  4. #24
    Happy Camper hcpookie's Avatar
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    Oh, so poorly built... no wonder! Good building makes all the world of difference.

    I think you mean 9.3x62?... that's apparently a big round in Europe. There is another Russian/Euro round, the 9.3x74 I think. Definitely a big game gun! US_Dragunov has been eyeing a Russian TIGR in that round. Wouldn't that be cool?
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  5. #25
    No Hope For Me 1biggun's Avatar
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    HC have you considerd leaving the muzzel end A larger OD than the rest of the barrel and going with a integral brake/magna port?? the gas block and FSB could be pressed on from the rear if planed out in advance. It would look pretty cool and save some weight on a already nose heavy gun.

    On my next varmit build and the last, the barrel steps up after the trunion area so intalling parts from the rear is no proplem.

  6. #26
    Gunco Maniac sjohnson's Avatar
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    The Finns used to have a law that citizens could not hunt using military cartridge dimensions. So, the Finns (having a large number of Mosin Nagant parts, actions, etc) rebarreled the Mosins into 7.5x54r, 8x54r, 9x54r, or some odd variation of caliber, but all based on the 54r base case.
    I have a daughter. I tell her, "911 is what you dial after you're raped. 1911 is what you should have before they try."

  7. #27
    Happy Camper hcpookie's Avatar
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    I'm not really interested in a magna-port type of deal. I realize it will be front-heavy, but then again I'm going to have a mag full of heavy ammo that will offset the weight
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  8. #28
    Gunco Member santanatwo's Avatar
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    Quote Originally Posted by hcpookie View Post
    I'd be curious to see a 9mm conversion with a broken barrel pin! Sounds interesting, because I can't figure out why a pin would break. I agree a higher-up pin would be the best solution, and it would be more like a pin setup in a G3 or VZ-58 that way. A smaller pin would then be usable.

    I have ordered a Shilen barrel blank and will use that instead of the Marlin barrel on my first build. It is HEAVY too. I'll soon be shipping it off to the smith with a big lathe
    I saw it in an advertisement. Some dude was sellign his FAIL build.

    The picture looked like he used about a 3/16 pin. (or possibly smaller)

    Stick with "bigger than a 1/4" and you should be fine.

    The barrel pin takes the pressure from the firing also, just like the lugs, except not as much, due to the friction between the barrel and trunion.
    Still, over time it takes a beating both ways. (the bolt slaming home also)

    Bigger is better, as long as you don't cut into the chamber.

    The barrel pin, if set in there tight will help support the chamber.

    Sounds like you need to use a virgin trunion and drill as high as possible. Try to not go smaller though, if at all possible.

  9. #29
    Happy Camper hcpookie's Avatar
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    Quote Originally Posted by santanatwo View Post
    I saw it in an advertisement. Some dude was sellign his FAIL build.

    The picture looked like he used about a 3/16 pin. (or possibly smaller)
    Like I said before... "no wonder because it was improperly built"... I think we can put that one to bed now.
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  10. #30
    Gunco Member us_dragunov's Avatar
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    Quote Originally Posted by hcpookie View Post
    Oh, so poorly built... no wonder! Good building makes all the world of difference.

    I think you mean 9.3x62?... that's apparently a big round in Europe. There is another Russian/Euro round, the 9.3x74 I think. Definitely a big game gun! US_Dragunov has been eyeing a Russian TIGR in that round. Wouldn't that be cool?
    Yeah...the Europeans have a couple of cool cartridges that really haven't made it big over here yet. The Russian TIGR/SVDK clone that I am doing is 9.3x64. I have the mags and a bunch of the parts but still need to collect a few more before I really get started on it. Oh yeah...and I am getting one of the actual military scopes designed for the SVDK.

    Quote Originally Posted by sjohnson View Post
    The Finns used to have a law that citizens could not hunt using military cartridge dimensions. So, the Finns (having a large number of Mosin Nagant parts, actions, etc) rebarreled the Mosins into 7.5x54r, 8x54r, 9x54r, or some odd variation of caliber, but all based on the 54r base case.
    The main round that I think you are talking about is the 9x53R (same as 54R....just in Finn speak....lolol). This is the same cartridge that the Russian Saiga-9 is chambered in. If Izhmash decides to start making these again you will see some come our way most likely.


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