I'm visiting here to talk about the 12ga From Hell and
other developements it has led to.Nice site you folks have.
I'm with a group of experimenters passing on the years of
info and pictures to all gun nuts around the net, about
12ga From Hell and other big bores. We have posted some
round the net about our many ideas we have implemented for
12ga,10ga,8ga,4ga,28ga,20ga,16ga, and my 585HE/700HE wildcats.
The idea for the 12ga FH, and the first gun built for it,
was Rob Garnicks on the AR Forums. In the first picture,
a heavy duty Borchardt falling block. He has gotten
1000 gr to 3000 fps in this, a high pressure action.
Then I and others joined in and set up a big variety
of guns for the case. The case, a brass case 3.85" long,
made from BMG brass expanded out with straight sides,
to take 12ga .729" dia slugs and a 12ga size rim added on.
Also we get turned brass cases from Rocky Mtn Cart of that
length and shorter. Many guys used 3.5" cases, as standard
reamers are available, and 12ga 3.5" guns are available,
so that they could shoot 3.5" plastic also. Our 3.85" chamber
and 3.5" will shoot any of the shorter cases.
In our work we found ways to get over a third more velocity
in shorter plastic and brass cases using slower powders
than regular fast shotgun powders. We reloaded fast
rifle powder, IMR 4759, IMR 4227, in larger amounts
and got 600gr hard lead slugs over 1800 fps in 24" barrels,
and were lab tested to be at or under magnum shotgun
pressures that are used in factory 3.5" loads.
More pictures, the 2nd showing long brass 12ga FH case with
regular 12ga case. Other 12ga FH guns are next,3rd Nef Ultra
heavy barrel with length added, 4th Nef 8ga made by boring
out heavy barrel 10ga, 5th FBW falling block,my 585HE belted
case.The FBW has a 20ga 3.5" extra barrel also.
.And we also worked with 8ga,4ga, in falling blocks, 20ga,16ga
in break actions, and my wildcat 585HE,700HE in various actions.
6th picture is our big cartridges from 2 bore on down, in
order-2bore- 4ga- 8ga- 10ga- 12ga FH- 700HE--700H 3.25- 30-06..
7th picture is 4bore falling block we built on our design.
Our 4bore is 1 inch bore.We also helped in getting the barrel
threads larger in the new large MRC PH bolt action to fit our
cases like the 700H 3.25" shown in 8th picture in MRC.
9th picture is an 8bore bolt gun a guy on another forum built
from scratch.Last is Savage 210 that Bret in MN set up with
heavy barrel and a recoil reducer put into the hollow stock.
Shown with boot off so you can see the build. He has gotten
saboted 500gr slugs over 3000 in this.We will post a bunch
more info and we welcome your ideas and help. And we'll give
all the help we can to folks ..Ed Hubel