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Here is picture of the 12ga belted cases I made to
test a few loads in. I made it from 55cal belted Boys case. I reduced belt diameter a little and left the base the same, which is 12ga size.In picture first is 55cal, second expanded to .620", third expanded to .660"(16ga), then two 12 ga ones. Next is our 12GA FH, and then a 12ga 3.5" plastic case.A little work in long 12ga FH chamber with a tool for belt step and it chambers. Ed ![]() |
Here is a picture of US-S brass slug after going through
3 foot of wood slabs in a bundle. It has shed its plastic base and it went through straight without tumbling. This one is 570 gr fired at 2200 in RMC case, from NEF. Also in picture is one with white sabot petals off, as it would be in flight, before hitting target.Ed ![]() |
4bore work. Working on design of firing pin,
and waiting for parts now. Problem is getting real small parts without CNC for bushed firing pin with rebound spring. But it takes time. We will have swaged lead slugs in a little while as my barrel is smooth. They will be 1600gr hollowbase, when done, a hundred of them at least. Got wads and cards, shown in the picture with 4bore cases and slugs. And my 2bore case for comparison Also 12ga wads for comparison..Ed ![]() |
Our cartridge work and experimenting got a nice
write up in # 470 Nov/Dec International Ammunition Journal. Page 10-11 by Zach Weighman, a cartridge collector and gun nut friend. Got a guy just figured out BMG case rim, and for a rim puts on 12ga high base cup from a plastic case. He turns base/rim of bmg case about .008" and use JB Kwik to hold it on. Pushes it on with press. He removes base cup with heat gun from plastic cases, He is using RE17, so shotgun primers will work, and he puts bushing in case for primer. Has bushing reamed so the primer pocket protrusion on the base cup goes up inside tight, as he pushes on the base cup. It'll fire ok and to size it do like I do, I push case into open top die, and push it back out from the top with a rod and hammer. That way the rim don't get bent up. He says it saves a lot of time not having to make rim pieces. We will have more info and pictures next few weeks.Ed |
Here is a picture of a BPI sabot with a BPI Flexseal I
use on to it in place of the original cushion seal. I also cut shallow slots in the outside at the bottom of the petals. Sabot opens much quicker and seems along with BPGS seals under it to work ok without damage, giving high velocities. In pic on left is regular BPI sabot, behind is one I put a cushion on from a Brenekke KO slug, and in front the one with Flexseal on. The slug in it is one a guy casts at 440 gr and .504" diameter, and works ok. New info on my 499HE, from now on we will make cases out of 450 #2 brass, as Jamisons has 3-4000 cases, and it seems no one has the 475 #2 we used first. Only slight case dimension change is the base .012" smaller, all else is the same. I'm getting reamers redone and will be able to use in couple weeks. Case will still have plenty of taper to extract easy in singles, doubles, falling blocks.etc. And speaking of falling blocks I found one, and put my 585HE in it, and it is big enough and has enough clearance to be used for a 577NE, 600NE, long 20ga, my long 16ga FH, the 700H, the 700HE. Cost no more than Ruger. Will have pics and info soon. Ed ![]() |
dang man i thought this thing was gone. Still a big round
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Here is picture, Falling Block I found that I put
my 585HE in. It didn't need any work on the feed trough to feed. 585 case shown in it. In fact the trough is big enough and the action big enough for 600NE, 3.5" 20ga brass, 3.5" 16ga FH brass, my 700 HE long case. I reworked a NEF stock to it, as I'm not a stockmaker.Nice action.2nd picture is of the 16GA FH in the feed trough.Ed ![]() |
Here is picture of the FBW falling block with my
700HE long case in it.This falling block is 1.5" wide, with a 1.125" wide breach block. The sides are .187" thick next to breach block. This compares to about .165" say for a Browning B-87, Win copy. The feed trough would work with 12ga size rim if some work was done on the top of the hammer. This has a barrel thread length of 1.005", thread diameter of 1.125" for good strength. Ed ![]() |
Here is picture of the falling block with a
600NE in the feed trough. Work great chambered as a 3.5" 20 gauge, for 20 gauge 3.5" brass and plastic cases also. Second picture is a 12GA FH case we made by epoxying on a 12 ga base cup onto a bmg brass case. Turned brass down .010" and pressed on base with epoxy in it and when set base is on good.Ed ![]() ![]() |
Originally Posted by Pawildman
(Post 1448881)
Why????? But then,again of course, why not?????
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