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...
.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?
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...
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...
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...
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...
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...
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...
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?
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...
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.
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
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...
OK folks, designing a wildcat along the lines of 240 Gibbs, but using the 7.62x54R case as a parent vs. .30-06. Using Nosler Varmageddon (tipped, flat-base) 55-grain j-words with polymer tips, 0.750" long. On to the questions:
1. What's my minimum cartridge neck length? Am I going to get in...
The Varmaggedons are on sale at Midway. Picked up the ".243 55 Grain Tipped Flat Base Box of 100" for $15.49 each.
Next up: the 6x54R Modified wildcat.
Vern--that's what I'm thinking as well. There will still be blowby wherever the projectile hasn't obturated to full-groove diameter, but it'll at least be better than an extension at land diameter (i.e. bomb!)
Fair enough, colonelhogan44. I'm threading the muzzle for a brake anyway--may as well build this extension and see what happens.
If it doesn't work, I'll cut it down and port the silly thing and call it a brake.
This'll be a target rifle, pseudo. If I go p-doggin', it'll be off the back of a truck.
Thanks, all for the considerations and thoughts. I'll keep noodlin' the idea around myself.
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