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RE: 12GA From Hell
Wow, I'm new so haven't seen this before, you guys have created a monster hubel!!!!!!!!!
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RE: 12GA From Hell
It sure has been a fun experience.It is only
a little like a monster. With thick pads and weight it great. Ed |
RE: 12GA From Hell
Hot Damn- Test Results of 4 plastic cases.
Rem high base 3" case, with 600 gr Dixie hardened slug. Roll crimped with crimper in drill press. All 4 loaded with 90 gr of 4759. We have a winner. Average velocity of 4 -- 1938 fps Average pressure of 4 -- 14, 575 psi. tested with transducer test ing setup, in 30 inch barrel,In my 24" NEF I got 1800+. Cases fell out of his test chamber like they did out of my NEF.And with some cases I can get in 95gr, that I figured with my math would have 15k psi.So my math and developement is OK.And 4800 ft lbs, thats neat with plastic. Tom says this load will do in any gun that handles the 2 oz factory magnum goose loads that test about 13,600 to 14,000.And 4759 will give slower time to peak pressure, thus will be easier on cases than magnum goose loads or the hot factory Buckhamer slug loads I fired, that expanded cases as much or more than our 4759 loads.Ed [/align] |
RE: 12GA From Hell
Buckhammer 3 "factory loads are 15k psi.
A 2.75 inch case with 80 gr of 4759, a thin card wad, a 3/8 cushion lubed felt wad, when crimped is about 2.4 inches long, with 600gr Dixie slug. Based on pressures recorded in previous post for 3 inch case and 90gr of 4759, they will run about 13,400 psi, and work through modern guns.Another load tested with same bullet, 65gr of 4759, tested at same place was 11,800 psi and 1640 fps. So you don't have to put in my max loads, but go down a little and use in modern guns that are lighter than NEF so they don't kick so bad.But yet you can get fairly good energy levels for big game, 3300 to 4000 ft lbs of energy.Ed [/align] |
RE: 12GA From Hell
Here is picture of case fired 25 times,
in my 700HE test barrel, to show you how cases stretch and thinout from repeated firings of high pressure loads. You can see where it is thinning just above the belt. Half of the loads were high pressure loads. Regular 10,000 ft lb loads wouldn't stretch cases at all. This is made from bmg brass like our 12GA FH. 700 is belted and 12ga has rim.Ed ![]() |
RE: 12GA From Hell
Some research. Anyone with a Mauser converted
to 12ga shotgun can fire our 4759 loads. One was the GEHA, other REMO. The locking lug for bolt is the rear safety lug and if you wanted an extra lug do an Ed on the bolt handle base to make contact between bolt handle and bolt handle recess.They are not long enough for our full length case, but came with 2 3/4" chamber and magazine.Were 2 shot large ring converted military mausers.Studying this gun lead me to the idea that a fancy 12ga with 3" chamber could be made by the same thing that Germans did to the Mauser to make GEHA. Just use a S&L, Colt Sauer, etc, with rear locking lugs. Grind out inside diameter of action from rear reciever forward so 12ga case will feed, Rear of bolt will still center ok as lugs and metal are there. The silver solder combination guide extension to support 12ga case on the left side of bolt, and put extractor on right side. Like a Sako or whatever.Face off the recess on front off bolt flat, Put in 12ga barrel with chamfers to clear extractor.A 788 Rem may work, at least with a 2.75" case. For repeater action, Open mag well to hold a single stack of 1 or 2 12ga cases.Fancy gunwrighters badmouthed the GEHA, but geese hunters just loved them, as they handled heavy loads fine. Ed. [/align] |
RE: 12GA From Hell
I have also found that the rear locking lug
idea will work with an Enfield, and it would long enough for our long case with little work. Work long case as singleshot. Work as single stack repeater with 3" 12ga. The bolt handle base would be one lug, and is quite large, which would be stronger than goose guns built same way.The left locking lug woud get a bite out on its end if front was bored out to .900, tp allow feeding of 12ga case. But I found a way to add extra lug in the back by opening sight recess that is in rear bridge down through to bolt raceway, mill groove on left for lug to turn into that opening and mill square recess into bolt and add lug on left.Result 2.5 lugs, with enough strength to hold 30k plus loads easily. Ream out front of action. Barrel threads are as big as Savage, little more than Mauser. Face off front of bolt flat.Add pin in ejector cutout to support case opposite extractor. The original lugs will guide for feeding. Screw in heavy 12ga rifled barrel.By the way would work for 700NE,My 700HE by keeping pressures moderate. Could handle 600Ne, full pressure. Ed [/align] |
RE: 12GA From Hell
Got a question for ya. Have you looked into using a sabot with a .50BMG bullet inside?
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RE: 12GA From Hell
Put one together with the federal sabots that hold
.Barnes slug that they sell, and other .500 diameter bullets like used in muzzle loaders and .500 S&W. Now regular 50 cal bmg bullets are .510, but some have front section .500. Called the borerider. I took one of these and cut off back and ended up with 470gr .500 bullet to put in sabot.It is in pic,Ed ![]() |
RE: 12GA From Hell
Other bolt guns with rear lugs that would be
neat Mauser 12ga GEHA like conversions, would be Champlin and Golden Eagle 7000. That Champlin would make a real beautiful 12ga. Hell to give the French equal time............ now watch out........... you could use a rear locking MAS.Its bolt is .800", a tenth of an inch bigger than most, including mauser, bolt actions. Best damn use for that gun that man could conjure up.With its larger bolt a real easy conversion, and with two rear lugs, it'll handle Magnum loads fine.Ed |
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