Recent content by jkpq45

  1. J

    Wildcatting the 7.62x54R: A quest for 4000+ FPS

    the goal is to keep the vortex behind the neck of the cartridge. we will see how I do after the first 50 rounds or so :) regarding the accelerator jackets, those are slick technology, but it will eat barrels just as fast with 3 to 4 times the ammunition cost. I'd prefer to spend my dough...
  2. J

    Green Mountain .45ACP Barrel Blank?

    .45 Colts can be 1 in 16 or 1 in 38, as I recall--all depends on the manufacturer. So, with a faster twist, would I want lighter bullets? Say in the 250-300gn range for either .454 or .460?
  3. J

    Green Mountain .45ACP Barrel Blank?

    Is anyone of the opinion that I could rechamber this beast to a longer/higher-pressure round than .45ACP? http://www.gmriflebarrel.com/barrelblanksround/175-round-rifle-barrel-blanks/45-acp-heavy-raw-blank,-175-x-125-4140,-116 I'd love to do .454 Casull or .460 S&W Magnum, even if I have...
  4. J

    Wildcatting the 7.62x54R: A quest for 4000+ FPS

    Updates: I have turned one reamer and messed up the body taper, then my lathe broke, so I'll start over. The goal is to minimize body taper, blow the shoulder forward, shift to 40 degrees plus shoulder angle, and have about two to three diameters of neck length. It may look a bit funny when...
  5. J

    I just bought a 100 year-old gun. What should I do to clean it up?

    Mother's Mag and Aluminum polish--will take rust and even out the finish a bit but it's a very mild abrasive and leaves patina.
  6. J

    When does a smoothbore shotgun barrel "shoot out"?

    That's the thing--I'm still shopping for the barrel stock. I have a 1.150" OD 12 gauge "heavy barrel blank" that will be sufficient to practice on, but I'll need a longer tube to get the higher velocities I'm looking for. Just trying to plan for how many rounds I can throw down the tube before...
  7. J

    When does a smoothbore shotgun barrel "shoot out"?

    I'm assembling a 12 GA From Hell project per Mr. Ed Hubel's experimentation. Expecting 6,000+ ftlb slug loads from this barrel; though in sabots. Perhaps that qualifies as "monkeying with" the barrel? Can't believe he did that to the barrel. I think I'd recommend a tapered rib (shorter at...
  8. J

    When does a smoothbore shotgun barrel "shoot out"?

    Hello All, I understand wear on rifling in rifled barrels--high velocity, hard bullets and high temperatures cause erosion to the rifling, throat/leade and muzzle crown. If I'm dealing with a chokeless smooth-bore shotgun barrel, shooting slugs through a 5 degree throat/leade, what will...
  9. J

    Noob to Jacketed Rifle Bullet Reloading: Special Seating Die?

    Hello All, I've always reloaded reasonably rounded- or flat-point pistol bullets and will try my hand soon at reloading jacketed rifle bullets for a cartridge similar to .243 Winchester. Are the punches/inserts for rifle bullets typically conical or cushioned to protect the nose of a...
  10. J

    Wildcat Design: Minimum Neck Length, Minimum Case Taper and Twist Rate

    Clark--what flavor of single-shot do you use? H&R? Any chances you have plans for that DIY barrel lug it looks like you crafted? Also--hard to make out the engraving on the back of your barrel. Looks like 500 something... making a .499 Hubel Express?
  11. J

    Wildcat Design: Minimum Neck Length, Minimum Case Taper and Twist Rate

    To be perfectly honest, I have brass that isn't being used in the form of 7.62x54R--the .30-06 brass I have will be for a .30-06AI; didn't feel like making a .240 Gibbs. Point well taken, sir. Most of the 6mm/.243 caliber cartridges I've seen hold on to the projectile with a neck at least...
  12. J

    re-inventing the wheel, re-threading a turk mauser

    What's the downside to rethreading the barrels vs. rethreading the action? That's the route I'd go--you'd get to leave your action alone and have the ability to set a nut on the barrel itself.
  13. J

    Chamber Specifications for 7.62x54R?

    My files don't show a good chamber drawing for 7.62x54R--after much Googling and scrounging, I've found drawings of the cartridge itself, but nothing for the chamber. Any help is appreciated! jkpq45
  14. J

    Shooting a MAK-90, after years of storage, after shooting corrosive ammo

    I bet you're fine--just might need an afternoon with some Hoppe's and a few (dozen) toothbrushes (teethbrushes?)
  15. J

    mosin nagant trigger work

    I did what BluEyes suggested by installing shims under the sear screw; took the trigger from~0.75" travel to about 0.1" travel. Trigger sits further rearward in the housing now and has a more predictable break point. Unload the rifle, cock it and close the bolt, then bounce the butt on the...
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