Results 1 to 15 of 15

Thread: Rimmed cases are easy to headspace- - - - - -

  1. #1
    Senior Member Teach's Avatar
    Join Date
    Jun 2011
    Location
    Dellrose TN
    Posts
    15,788

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

    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
    The masochist says "HIT ME! The sadist says "NO!"
    "When a man's down, KICK HIM! If he survives it he can rise above it!"

  2. #2
    Senior Member
    Join Date
    Sep 2016
    Posts
    984

    Re: Rimmed cases are easy to headspace- - - - - -

    Is 7.62x54r brass easier to come by?

  3. #3
    Senior Member Big Al1's Avatar
    Join Date
    Jun 2011
    Location
    Panama City, Fl.
    Posts
    5,531

    Re: Rimmed cases are easy to headspace- - - - - -

    That would be a lot of work to make a rimmed 6.5 Sweed! But there would be a cool factor!!

  4. #4
    Senior Member breamfisher's Avatar
    Join Date
    Jun 2011
    Location
    Living in a van, down by the river.
    Posts
    11,433

    Re: Rimmed cases are easy to headspace- - - - - -

    6.5 x 303 Epps, at least as a starting point....
    Overkill is underrated.

  5. #5
    Senior Member Teach's Avatar
    Join Date
    Jun 2011
    Location
    Dellrose TN
    Posts
    15,788

    Re: Rimmed cases are easy to headspace- - - - - -

    Quote Originally Posted by Rocketman View Post
    Is 7.62x54r brass easier to come by?
    Yep, but a lot less case capacity.
    Jerry
    The masochist says "HIT ME! The sadist says "NO!"
    "When a man's down, KICK HIM! If he survives it he can rise above it!"

  6. #6
    Senior Member MileHighShooter's Avatar
    Join Date
    Jun 2011
    Location
    Denver, CO
    Posts
    3,495

    Re: Rimmed cases are easy to headspace- - - - - -

    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?
    Quote Originally Posted by Wambli Ska View Post
    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.

  7. #7
    Senior Member olesniper's Avatar
    Join Date
    Jun 2011
    Location
    Franklin, Ky.
    Posts
    3,073

    Re: Rimmed cases are easy to headspace- - - - - -

    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

  8. #8
    Senior Member Teach's Avatar
    Join Date
    Jun 2011
    Location
    Dellrose TN
    Posts
    15,788

    Re: Rimmed cases are easy to headspace- - - - - -

    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
    The masochist says "HIT ME! The sadist says "NO!"
    "When a man's down, KICK HIM! If he survives it he can rise above it!"

  9. #9
    Senior Member Teach's Avatar
    Join Date
    Jun 2011
    Location
    Dellrose TN
    Posts
    15,788

    Re: Rimmed cases are easy to headspace- - - - - -

    Quote Originally Posted by MileHighShooter View Post
    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
    The masochist says "HIT ME! The sadist says "NO!"
    "When a man's down, KICK HIM! If he survives it he can rise above it!"

  10. #10
    Senior Member knitepoet's Avatar
    Join Date
    Jun 2011
    Posts
    14,166

    Re: Rimmed cases are easy to headspace- - - - - -

    Quote Originally Posted by MileHighShooter View Post
    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
    Quote Originally Posted by Sheriff Jim Wilson on FB
    Rubbing people's noses in stuff is rarely the way to get what you want.

  11. #11
    Senior Member MileHighShooter's Avatar
    Join Date
    Jun 2011
    Location
    Denver, CO
    Posts
    3,495

    Re: Rimmed cases are easy to headspace- - - - - -

    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
    Quote Originally Posted by Wambli Ska View Post
    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.

  12. #12
    Senior Member MileHighShooter's Avatar
    Join Date
    Jun 2011
    Location
    Denver, CO
    Posts
    3,495

    Re: Rimmed cases are easy to headspace- - - - - -

    Quote Originally Posted by knitepoet View Post
    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
    Quote Originally Posted by Wambli Ska View Post
    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.

  13. #13
    Senior Member
    Join Date
    Jun 2011
    Posts
    8,041

    Re: Rimmed cases are easy to headspace- - - - - -

    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

  14. #14
    Senior Member tennmike's Avatar
    Join Date
    Jun 2011
    Location
    Under a log
    Posts
    17,764

    Re: Rimmed cases are easy to headspace- - - - - -

    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! )

    http://www.sinclairintl.com/aspx/Sea...1=Die%20Blanks

    http://rcbs.com/Products/Dies-by-Cat...Blank-Die.aspx
    When I hear the phrase "our democracy" spoken by politicians and talking news heads I see a red flag with a yellow hammer and sickle over their head.

  15. #15
    Senior Member Teach's Avatar
    Join Date
    Jun 2011
    Location
    Dellrose TN
    Posts
    15,788

    Re: Rimmed cases are easy to headspace- - - - - -

    Die blanks- - - - -who needs 'em? They haven't stopped making 7/8" diameter annealed drill rod, have they?
    Jerry
    The masochist says "HIT ME! The sadist says "NO!"
    "When a man's down, KICK HIM! If he survives it he can rise above it!"

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •