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Discussion Starter #1 (Edited)
I posted some info about our 12GA FH in introduction forum.
The first 12GA FH was Robs on AR forum, my Savage was 2nd.
Here is closeup pic of Rob's 12GA FH, a Borchardt falling block
action. Real nice. In picture is along brass 12ga case with one
of Rob's 2000gr bore rider, solid, streamlined slugs.
Also 2nd picture my 700HE, that uses a straight belted case
I made from BMG brass. Just got the barrel on action. It is barrel
that I used as a test barrel and load developement, with it locked
on to a heavy I-beam and screw on breech. I have two years
of testing my 700HE loads.Top load over 22,000 ft lbs.Ed



 

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Discussion Starter #3
For fun. Some like hopped up cars, tractors, horses,
we like guns. And it isn't only for the hunting as we could
go the pc anti way with one gun hunting deer 14 days.
Lock up gun the rest of the time.
It is more, shooting, hunting, target, reloading, building,
experimenting, plus collecting, and studying history
of firearm use in military and civilian use.
It is the art of doing the impossible.Ed
 

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I think they are a little more than the average guy might want to shoot. I mean if that's your thing go for it. Never know you might work up something the military might want. Good luck with it.:30:
 

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Discussion Starter #5
The military already has the equivalent in 20mm
and 25 mm. And they, brass cases don't have to be loaded to top
loads. And while we were testing we found loads for regular
plastic 12ga cases that have 3-500 fps more than factory
slug loads. That makes for loads for shotgun only hunters that are
much more effective 150 yard guns. We had these loads pressure tested and
they had same peak pressures as factory magnum loads. We used
fast rifle powders which still are much slower than really fast shotgun powders.
This allows the case to have more powder than wads like regular loads,
and results in a load that gives a longer higher average pressure curve
and a good increase in velocity. At safe peak pressures. Example is 600gr
hardened lead slug in an NEF 12ga Ultra slug gun at 18-1900 fps. Ed
 

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WOW!:yikes1:That's getting that hunk of lead a moving. How long have you been working at this to get that kind of performance? :30:
 

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Discussion Starter #7
We've been working a total of 4 years on the 12ga FH,
with long brass case and real hairy loads.
On load developement for more power in regular plastic cases
over 2 years. That is with 12ga. Also loads in 10 ga. 8 ga,
28ga. We have a 28GA FH 3.25" long case gun that we've tested.
I've wildcatted for 20 years with various ideas, and worked on
my 700 for over 8 years.Here is a picture of a bolt action with
the 8GA FH. It is on a reworked bolt action Enfield. So far in
8ga we only used plastic cases. Later we may test brass cases
if we can get a few done.Ed

 

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Discussion Starter #8
Here is picture of a neat scaled up Sharps replica
that would handle out 12GA FH and my 700HE.
That outside hammer looks great. From a magazine
article in Very High Power...Ed

 

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Discussion Starter #11
Thankyou- We have a huge amount of info from our building
and testing. Testing with our long case, with heavier loads in
12ga plastic cases, in various guns, using slower powders than
shotgun powders, a dozen variety of bullets and slugs.
Here is picture of my Savage 210 12GA Fh bolt action.I changed to
a heavy long barrel heavy weight stock, thick pad, and top load tested
was over 15,000 ft lbs. It is chambered for our long brass case.
2nd pic, I also did one on a NEF Ultra Slug gun, by just deepening
the chamber for our long case. It came with a heavy enough bbl.. Ed



 

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Discussion Starter #12
Here is picture of a dart type 12ga slug Rob made. Body
is aluminum, it has a heavy tungsten carbide insert in the
nose. The TC in the nose is about 5 times denser than AL.
Total length is 2.35 inches, weight about 950 gr. The .75" long
insert a real tight type fit. Heat AL, put in insert, cools, locks on.
It is fairly streamlined, yet has wide meplat for penetration
in game. Flat points penetrate straighter in game.
It is hollow inside in the back, behind insert which puts the
center of gravity way up front, it should fly straight even from
a smoothbore. They are fast to make and material
less expense than copper.In pic is a copper and a brass 600
cal slugs for comparison. Dart/slug on right has insert.Ed

 

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Discussion Starter #13
Here are more samples of nice 12ga slugs.....Here is pic of
ones RG Henson sent. Jacketed 12ga. 715gr hollowpoints,
on the right and in front a jkt 675gr hollowbase.
RG's number 1-770-366-4846. These will be great for
shorter plastic and brass cases as well as long cases.
Other slugs in pic, in the back, left to right
Foster 436gr- Dixie 600gr- 750gr brass- my 750gr hollowbase
brass, and a hollowpoint I put a lightweight filler in the nose
for streamlining..Ed

 

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Discussion Starter #14
Here is picture of our case sectioned next to a
thin factory brass case to show the great strength.
And our case in pic was fired 35 times and shows
no stretching. Ed

 
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Cool toys!!!

One thought. I've fired 00 buck from a NEF rifle. You boys are nuts.:biggrin5:
 

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Discussion Starter #16
Yes I fired one shot of buckshot from Savage at about 2000
fps. Sure was a big pattern from that rifled barrel. Cleaned out
lead fouling with a copper choreboy. My 8ga is smooth and I fired
a load with 000 buck. It is built on a reworked Enfield bolt action.
They go through 2" planks at over 2000 fps. Ed
 
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Here is picture of a dart type 12ga slug Rob made. Body
is aluminum, it has a heavy tungsten carbide insert in the
nose. The TC in the nose is about 5 times denser than AL.
Total length is 2.35 inches, weight about 950 gr. The .75" long
insert a real tight type fit. Heat AL, put in insert, cools, locks on.
It is fairly streamlined, yet has wide meplat for penetration
in game. Flat points penetrate straighter in game.
It is hollow inside in the back, behind insert which puts the
center of gravity way up front, it should fly straight even from
a smoothbore. They are fast to make and material
less expense than copper.In pic is a copper and a brass 600
cal slugs for comparison. Dart/slug on right has insert.Ed

man the surface area on just the face of that thing is sick.talk about knockdown juice! dangerous game deluxe?
 

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Discussion Starter #18
Testing 715gr jacketed hollowpoint from RG Henson in Savage 210.
With 30 inch barrel, long brass 3.85" case, big primer.
Slightly hairy load 290gr RL22--2700 fps. Shot moderate load
of 300gr W-860 -- 2400 fps for 3 shot group of 3" at 50
yards with my bad eyes and peep sights. They shoot nice, they go
into target straight.. Other nice thing the price from RG,
for customers getting in on his first run, $1.25 plus shipping.
That is less than half of what other big bore jkt bullets cost.
Call him for some great slugs. They are great like
the Dixie slugs. Ed
 

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Discussion Starter #19
Lookee what another santa sent me.
A regular BMG case on the left, and
a straight BMG case on the right, and it
CAME FROM THE MANUFACTURER THAT WAY.

It is primer cartridge for large guns and howitzers.
It is used in those guns/cannons that have powder in big bags.
It is filled with powder and inserted into cannon breach and
when fired sets off the larger charge. On some cannon breaches
they have an automatic feed for these with a huge 40 round
drum magazine. This on is marked IVI 89 C67. IVI is Canadian.
On these breaches it is held by collet fingers for head space
and for ejection.

Ok, there are many thousands more of these out there than the
PROP cases I showed before. We need to find few barrels of these
and have Rob, etal, put on rims.... no annealing.....no fireforming,
just slight resize to 12GA FH. Please help if you know of any.
They would save so much work and time..And even though fired
the bases are perfectly straight, another plus.....Ed

 

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Discussion Starter #20
Here is a picture of RG's jacketed 715gr slugs in various
loads.First are 2.75" and 3" factory foster slugs\ for
comparison. 3rd is jkt HP in 3.5" plastic case, 4th in a
3" brass RMC case. 5th in a 3.5" brass case with small
primer, 6th in our long brass 3.85" case, big primer.
Top hairy load in long case in Savage, 2900..Ed

 
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