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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Experimenting for fellows

Experimenting for fellows trying to get speed with heavier sabot slugs than the lightweight saboted 4-500 gr kind of slugs, in 2 5/8" length brass cases for where length is limited.. Using 770 gr sabot slugs with locked on base, by US-S. These are long sabot slugs due being brass and locked on base. Real hard to do with these due to lack of powder space for the RE17 and IMR 4759-4227 that I like to use. With 770 gr and 60gr 4759 got 1450 fps. With 75gr Re17 about 1350 fps. Both of these all case will hold under sabot. For contrast using full bore 730 gr Dixie with just seals under it, much more powder room, with 95gr 4759 getting 1800 plus and 130 gr RE17 1700 fps. I went to faster powder, my slowest shotgun powder, Alliant steel, to try to get speed like full bore slugs get. These listed are max loads before brass cases expanded to much and started sticking, due to sharp expansion step, where the base goes to the side with a real small inside radius on this particular RMC brass case. 47gr Steel,and 770 gr slug 1400 fps. So I tried the 570 gr US-S with 53gr Steel,and got 1700 fps. Same slug with 65gr 4759 got 1650. You can put in more Steel but cases stick more.They won't blow up, just stick. And cases expanded that way are hard to resize. The first 3" brass I got years ago, same problem with a sharp step expanding above the base. So when I had 3.5" brass made I had them do a long inside radius from base to the sides. These with extra room for powder and cushion are much less problem. I think where you have to use shorter cases, you can use plastic, as a 3" plastic is 2 5/8" when crimped and will do the same and only be 20 cents or so new.Ed

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Here is picture of a big bolt

Here is picture of a big bolt action a fellow on Homegunsmith
built to put big cases in, for his own use. It is of better looks,
quality than most other single shot actions, of that style being
built by others for sale. And that is absolute
sexiest bolt handle.
Also the fellow made a recess type of die and shaped punch
to make large caliber, copper bullet jackets, from plumbing
copper caps, and then put melted lead into them from
the back. He uses a big hammer, works great.

I made a 24ga FH case, 4" long, also called 585 Rimmed HE,

and will test it. Pics soon.Ed

Offline
Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Here is picture of a big bolt

Here is picture of a big bolt action a fellow on Homegunsmith
built to put big cases in, for his own use. It is of better looks,
quality than most other single shot actions, of that style being
built by others for sale. And that is absolute
sexiest bolt handle.
Also the fellow made a recess type of die and shaped punch
to make large caliber, copper bullet jackets, from plumbing
copper caps, and then put melted lead into them from
the back. He uses a big hammer, works great.
I got a few different sizes of caps and they are
perfect for bullet jackets. Right from hardware or plumber
supply places.Ed

 

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Answering questions; bullet

Answering questions; bullet jackets from copper tubing caps. This process makes jacketed slug with covered nose. With heavy soft jacket as opposed to a solid turned slug from solid rod or soft lead slug. 1/2" caps can make .700 and 12ga size jackets. 5/8" caps can do 8ga and maybe 10ga jkts. And 3/4" caps can make 4ga. These cups are malleable enough to shape into jackets, without a 20 ton stamping press. Interesting info about our posting of this subject on about 5 dozen forums. One big general forum thread, that we posted some info, has about 5 million views.It is Mil Photo Forum a big world wide forum.. The top forum of the bunch, with whole thread on it about 120,000 views, 2nd about 110,000 views, 3rd one about 104,000 views, 4th one about 102,00 views. We greatly appreciate all the interest from all the forums, of all sizes. And all the help and ideas too...Ed

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
You know of the 4 bore we did

You know of the 4 bore we did on falling block,
with its 1 inch bore.Using turned cases and cases
made from 20mm brass. Our cases have a rim and
straight sides. A smith in the EU made a 1 inch bore
gun on a bolt action, using 20mm brass expanded
to take 1 inch bullets. His case has a shoulder to
head space on. It is called the Inch Gun by some.
It is a really nice looking gun, with great
craftsmanship.Ed

 

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Here is picture of the 8ga

Here is picture of the 8ga falling block we are working
on, partly done. It is built like the 4bore one in a
one piece stock. IT is built .150" narrower than 4bore.
We used the heavy 8ga barrel that I first
put in the Enfield bolt gun for a 8ga testing. The breech
block, linkage, lever, pivot is done, as you can see
in picture with lever open and breech down.
I have got to chamber, put in firing pin, do
hammer and trigger. 8ga gun  in 1st picture.

Hammer and trigger setup is now mounted and moves
on the back of the breech block on an extension.
I also made this change first on  4bore, 2nd pic.
It uses NEF hammer and spring and Stevens trigger.
Breech block set up same as 4bore just narrower.
Later hope to do a 2 bore and same setup only
breech and action a little wider.Ed

 

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Here picture of the 8ga from

Here picture of the 8ga from back. This action will also
do 12ga FH, 10ga, 700HE, 600NE,50BMG,etc. The breech
block in this and the 4bore are 1 inch thick front to back,
 with the width different. The bottom of block is same on all
and uses same linkage and lever; same hammer and trigger.
The 4bore one will do 20mm, as that is what I make
the 4bore brass from. When I do 2bore, breech block will use
same design, but just be wider on the top of the block.
The recoil pads are over 2" thick. I made the stock
from a 2.5" thick blank......mostly by hand.

This action will hold much more pressure that the heavy
built plastic 8ga cases can take , and they are good
to over 20,000 psi. Like a 1000gr at 2500.Ed

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Guys wanted more particulars

Guys wanted more particulars of Hubel FB..
Here is picture, empty falling block receiver
from the top...2nd  a side view of the breech
block with back extensions, with hammer and
trigger. Hammer has safety cocking notch.
The lever, not shown, connects to linkage up
inside the two bottom extensions.Ed
 

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
A fellow in Texas picked up a

A fellow in Texas picked up a Tula-Toz  4bore
pump gun like Big Al has. He is getting some
of the 3 inch brass 4ga cases from RMC.
RMC still has them if anyone needs them.
That gun takes a short 4ga case, either brass
or plastic if you can find them.This 4 gauge
is a .938 inch bore, smaller than our 1 inch one.
Pic is Al's gun.Bolt has 4 locking lugs...ED

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Location: Brinton, MI
Joined: 10/16/2007
Posts: 309
Here are pictures of the

Here are pictures of the Falling Block breech block.
Front and side rear view....Notice the integral bottom
extensions are narrower than the top. These are
what the linkage is inside of and when breech is
levered down these fit though the slot in the stock.
And being narrower the slot isn't too wide so the
stock has enough strength. Bottom extensions same
width for all action sizes.Just top different
for the size of action needed for big cartridges.
This breech is little rough as it has had a dozen
changes to it. But it holds a load in 4 bore
of 1500gr over 2600.Ed

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