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Thread: Can I cut a sizing die with a finish chamber reamer ?

  1. #1
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    Can I cut a sizing die with a finish chamber reamer ?

    As the title say "Can I cut a sizing die with a finish chamber reamer ?"

    The sizer die would just be for the one rifle
    If I fractionally under sized the die blank would it size the brass down to under chamber size ?

    This would avoid the cost of buying expensive obsolete reloading dies
    I have heaps of 4140 32mm offcuts from my barrel maker about 150mm long that would be perfect for dies

    Cheers

  2. #2
    MSL
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    I’ve got a die here that was reamed with the same chamber reamer, not sure if they undersized the bore of the die though. I’d have thought the reamer would cut to the same dimensions, unless the wall thickness was on the thin side.


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    I have a full length sizing die for my 6.5 made using the rifle's finishing reamer. It has also been electroless nickel coated to build it up a bit inside. It full length sizes my brass, but only just. It struggles. Maybe better to cut it with a roughing reamer and then hone.

    Sorry, correction, my die is a body die and doesn't size the neck. I do that after full length sizing with a bushing neck die. Same overall result just 2 dies to do it.
    Last edited by zimmer; 02-08-2020 at 04:14 PM.
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    Quote Originally Posted by MSL View Post
    I’ve got a die here that was reamed with the same chamber reamer, not sure if they undersized the bore of the die though. I’d have thought the reamer would cut to the same dimensions, unless the wall thickness was on the thin side.


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    Yes I'm assuming it will be the same as the chamber [B]but [B]I'm also assuming that the brass spring back would leave the loaded rounds pretty hard to chamber

    And because it will be for a single shot rifle there won't be any camming power to chamber a tight round

    And because it will be an obscure round I won't have the luxury of a roughing reamer

  5. #5
    Member Wingman's Avatar
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    Short answer is no but...
    You can make a neck sizer die with a finishing chamber reamer. You need to machine the top out to accept neck bushes.
    Reamers can be ordered in 3 sizes, rougher, finisher and sizing.
    dirkvanvuuren likes this.

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    ok WHAT obscure round????????????????????????????

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    Finish your chamber then have the reamer ground for the die?
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

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    Quote Originally Posted by Micky Duck View Post
    ok WHAT obscure round????????????????????????????
    375 2 1/2" nitro express flanged

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    Quote Originally Posted by veitnamcam View Post
    Finish your chamber then have the reamer ground for the die?
    Yes that would work
    But the reamer is only usable once as a chamber reamer

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    Quote Originally Posted by akaroa1 View Post
    375 2 1/2" nitro express flanged
    woohooo big boomer.

  11. #11
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by akaroa1 View Post
    Yes that would work
    But the reamer is only usable once as a chamber reamer
    Yes but its a one off obscure round isnt it? Otherwise get a die reamer as well.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

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    Quote Originally Posted by Micky Duck View Post
    woohooo big boomer.
    Big but not a full speed 375
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    Like I said you can use my dies, load up a heap after working up a load & send them back, I have 3 .375Ex & two more barrels coming one day .

    I don't think you will use a lot after working up a load ?
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  14. #14
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    Quote Originally Posted by Scout View Post
    Like I said you can use my dies, load up a heap after working up a load & send them back, I have 3 .375Ex & two more barrels coming one day .

    I don't think you will use a lot after working up a load ?
    Yes i will
    My farm is crawling with huge hares !
    They take quite a lot of stopping and even the odd follow up shot
    Micky Duck and Joe_90 like this.

  15. #15
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    Lol, Ok, will keep a watch out for dies then !

    Maybe you loan the dies back when I need them then ?

 

 

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