Rimmed cases are easy to headspace- - - - - -

TeachTeach Senior MemberPosts: 17,913 Senior Member
I'm getting an off the wall idea for a wildcat cartridge. How about a NEF single shot chambered in 6.5-.303 Brit? Lop off a .44 Mag NEF barrel just ahead of the pivot lug, bore and thread the remainder for a 6.5 barrel blank, and let Dave Manson work his magic on an "improved" .303 chamber reamer with most of the body taper straightened out, a sharp shoulder angle, maybe 35 degrees, and a neck just long enough to get a good grip on a .264 bullet. The extractor/ejector system ought to work with little, if any modifications needed. Sounds like a fun single shot to me!
Jerry
Hide and wail in terror, Eloi- - - -We Morlocks are on the hunt!
ASK-HOLE Someone who asks for advice and always does something opposite

Comments

  • RocketmanRocketman Banned Posts: 1,118 Senior Member
    Is 7.62x54r brass easier to come by?
  • Big Al1Big Al1 Senior Member Posts: 6,523 Senior Member
    That would be a lot of work to make a rimmed 6.5 Sweed! But there would be a cool factor!!
  • breamfisherbreamfisher Senior Member Posts: 12,551 Senior Member
    6.5 x 303 Epps, at least as a starting point....
    Overkill is underrated.
  • TeachTeach Senior Member Posts: 17,913 Senior Member
    Rocketman wrote: »
    Is 7.62x54r brass easier to come by?

    Yep, but a lot less case capacity.
    Jerry
    Hide and wail in terror, Eloi- - - -We Morlocks are on the hunt!
    ASK-HOLE Someone who asks for advice and always does something opposite
  • MileHighShooterMileHighShooter Senior Member Posts: 4,337 Senior Member
    Too bad NEF never made a 6.5mm, then it would just be a rechamber and go shootin!

    SSK has a whole line of rimmed cats, but I believe they're on the .225 Win, 30-30 and 444. What's the capacity like in a 303?
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • olesniperolesniper Senior Member Posts: 3,474 Senior Member
    Let me know if you need any .303. Saw a couple of boxes at Cabela's.
    Yea, though I walk through the valley of the shadow of death,
    I will fear no evil: For I carry a .308 and not a .270
  • TeachTeach Senior Member Posts: 17,913 Senior Member
    I've got a little bit of once-fired brass stashed away for building purposes. I'd probably have to make a set of loading dies for a cartridge like that. I hear that it's possible to use a "roughing" chamber reamer to cut an acceptable-dimension sizing die from a piece of tool steel, then case-harden it when it's done. Never tried it, but there's a first time for everything! Then use the finish reamer to make the bullet seating die.
    Jerry
    Hide and wail in terror, Eloi- - - -We Morlocks are on the hunt!
    ASK-HOLE Someone who asks for advice and always does something opposite
  • TeachTeach Senior Member Posts: 17,913 Senior Member
    What's the capacity like in a 303?

    It's pretty close to a .30-06, considerably bigger than a .30-30 and somewhat larger than a 7.62X54. Going to a sharp-shouldered "improved" shape with the shoulder moved forward a little and just enough body taper to make extraction possible with a spring type extractor would add a bit of volume, as well.
    Jerry
    Hide and wail in terror, Eloi- - - -We Morlocks are on the hunt!
    ASK-HOLE Someone who asks for advice and always does something opposite
  • knitepoetknitepoet Senior Member Posts: 16,561 Senior Member
    What's the capacity like in a 303?
    Using the QL defaults
    303 -56gr h20 which is identical to the 308 win
    it lists the 7.62x54R's capacity @ 64gr h20 and the 30-06 at 68.2
    Seven Habits of Highly Effective Pirates, Rule #37: There is no “overkill”. There is only “open fire” and “I need to reload”.


  • MileHighShooterMileHighShooter Senior Member Posts: 4,337 Senior Member
    Jerry i haven't looked for years, but i remember coming across die blanks online, to do just what you are talking about, rougher for FL, finish for seater. I'll see if i can dig those up.

    Catting the 303 is fairly popular in Australia, so those dies may already have a print somewhere
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • MileHighShooterMileHighShooter Senior Member Posts: 4,337 Senior Member
    knitepoet wrote: »
    Using the QL defaults
    303 -56gr h20 which is identical to the 308 win
    it lists the 7.62x54R's capacity @ 64gr h20 and the 30-06 at 68.2

    Lots of taper in the 303, bet you could improve that up x54R lebels.

    307/356 win brass could work, too. But, surplus 303 brass is possibly cheap and easy to aquire
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • Gene LGene L Senior Member Posts: 9,332 Senior Member
    Surplus military .303 brass is Berdan primed.

    I like the .303 just fine. I'm boring and don't need a super thumper.
    Not too many problems you can't fix
    With a 1911 and a 30-06
  • tennmiketennmike Senior Member Posts: 21,468 Senior Member
    Sounds like a FUN project to me! That would stretch out the range of a 6.5mm and a rimmed cartridge would solve that stupid extractor problem nicely.

    Here's two places that sell die blanks for reaming your own reloading dies. (Enabling the project! :tooth:)

    http://www.sinclairintl.com/aspx/Search/Default.aspx?cid=5675&avs|Die%20Style_1=Die%20Blanks

    http://rcbs.com/Products/Dies-by-Category/Blank-Die.aspx
    A double action revolver is a semiauto firearm. It fires once for every trigger pull.



  • TeachTeach Senior Member Posts: 17,913 Senior Member
    Die blanks- - - - -who needs 'em? They haven't stopped making 7/8" diameter annealed drill rod, have they?
    Jerry
    Hide and wail in terror, Eloi- - - -We Morlocks are on the hunt!
    ASK-HOLE Someone who asks for advice and always does something opposite

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