Author Topic: necked up .50 BMG cartridge (Read 6155 times)

msorenso · « **Reply #30 on:** February 02, 2005, 11:36:49 AM »

Ed,
You kick ***.
It is so cool to see somone that goes beyond the status quo.

glock29 · « **Reply #31 on:** February 04, 2005, 06:04:58 AM »

I like the 4-bore idea !
How about a 2-bore ?
I have seen references to a 2-bore rifle named 'baby' that was used on several safari's.
Now that's a BIG-BORE !

msorenso · « **Reply #32 on:** February 04, 2005, 12:20:23 PM »

I have heard about the bore rifles; do not know much. Did they have as muchpower as the nitro's?

Ramrod · « **Reply #33 on:** February 04, 2005, 01:40:40 PM »

Those 2 bores and 4 bores were from back in the blackpowder days. There was no way to increase velocity much beyond 1400-1600 fps, so the only way to increase energy was to increase the size of the projectile. A 4 bore is a very small cannon, about 1 inch, and a quarter pound ( round) ball. A 2 bore is a half pound ball. We are talking 8 ounces, or 3500 grains. Much more for for an elongated projectile. Needless to say, these guns were heavy, to keep from killing the shooter with recoil.

msorenso · « **Reply #34 on:** February 04, 2005, 04:19:27 PM »

Holy! I get the picture. what type of gun these super gun cartridges could you even shoot this out of? :shock:

hubel458 · « **Reply #35 on:** February 04, 2005, 04:33:37 PM »

Glock-Msorenso-Ramrod- We are working on a 2bore
also. Found surplus cases to make cases out of.
Case is 5 in long, 1.225 in bore..Found barrels to use, 30mm barrels the muzzle sections, 40 in long,
and they are like new inside($250).Barrel has a flange on it, which will make adding a pivot and lug block easy and strong..We are working to get some type of break action built.Have pics below.First
being the case with breech end of barrel.Second is sideview of barrel with a mockup pivot lug block
on it, and a 2bore case, 4bore case, and 458Win
for comparison.One thing with black on up through modern powders,depending on action strength and weight the 2bore can range from 7000 to 40,000 ft lbs energy...Ed

msorenso · « **Reply #36 on:** February 04, 2005, 06:03:13 PM »

Do you have a web sire will all your inventions. Would love to see it :grin:

hubel458 · « **Reply #37 on:** February 04, 2005, 06:47:18 PM »

Don't have a site for that..They aren't inventions,
as much as just getting things already out there
to work for big bore nuts.At a decent price.To
get out the info about what we do, we post on here,
HA, AR, NX, etc, which will let you and others keep up on our progress.And more important join in.
It's like recycling with a lot of the things
we are figuring out; things normally scrapped.Ed

msorenso · « **Reply #38 on:** February 05, 2005, 04:15:58 AM »

I am definitely doing you 700HE now you got me thinking of more too... :grin:

glock29 · « **Reply #39 on:** February 07, 2005, 08:13:45 AM »

There is a VERY easy way to keep from killing the operator from recoil of these large bores.
Mount it on a base or a tripod with recoil lugs that dig into the earth ala 'artillery' style.
I'd like to see the person that touches off a 40,000 ft/lb muzzle energy 2-bore. (Before, during, & after the shot)
That thing would be good medicine for ANYTHING that ever roamed the earth in ANY (including Dinosaurs) era.
It probably would actually fling an elephant into the air & bowl it over like a bowlin' pin !

hubel458 · « **Reply #40 on:** February 08, 2005, 04:52:45 PM »

When I do load testing and chrono work,I have
a tall standup bench and heavy tripod locked to barrels that I can add weight to.Up to
150 lbs. Often felt if found one as a bargain,
I could get a Lahti anti-tank rifle use different barrels in the different calbers,for
testing the big ones.It weighs 90 lbs and could take recoil good. Add weight by Taking skis off the bipod
and extend down, adding tall tires, and the just wheel it around, and shoot. For off hand shooting in a break action weighing 30 lbs, we will stop at half of its energy potential.I know some who would only want it to weigh 20 lbs!!!Ed.

Don Fischer · « **Reply #41 on:** March 01, 2005, 12:27:37 PM »

I'm not into big bore's so excuse me for sticking my nose in here. Just had a though. In another forum some guy asked about the virtue's of a new rifle from Ruger. A light weight with a 16 1/2" barrel. Maybe Ruger could chamber one of these in that rifle? I'll bet they'ed get somebody to buy it!

hubel458 · « **Reply #42 on:** March 01, 2005, 12:36:02 PM »

PA-We figured to cast the bullets for 2bore.
Naval Ordnance is already set up to make the 4 bore with his hydraulic Corbin.They happen to be making them the size that works best for the cases and the barrels we will get.Some other 4 bore gun builders had the same bore size also.Here is picture of two types they make, shown with our 4bore cases,
and in picture is a 20mm we build the 4bore cases
from, along with 3006 for comparison.

Don-I wish someone built a large Ruger #1 type
action for our 4bore, that was affordable.Ed

Ramrod · « **Reply #43 on:** March 01, 2005, 05:05:26 PM »

Are those 30 mm barrels the surplus Bofors that have been turning up lately? I have considered building a muzzleloader from one. I doubt I could blow it up!

hubel458 · « **Reply #44 on:** March 01, 2005, 05:09:36 PM »

PA-Yes if they weren't doing the 4bores we would talk
you into it(put you in hock for more dies,etc), and on the 2 bores jacketed was way too big for regular machines, and since the 2 bore would never get over 2000 fps, due to recoil, cast would do.I have 25 lbs wheelweights, another guy who wants to
build one has over a 100 lbs.Are you into casting
huge bullets..Ed

Ramrod--They are the 30mm GAU chain gun barrels
I think.I have a muzzle section. BigSky Surplus
has those and breech sections.Ed

Don Fischer · « **Reply #45 on:** March 01, 2005, 06:03:48 PM »

Just to get some idea of what we're really looking at here, could someone stand say, a 30-06 cartridge up next to this 70-50BMG?

hubel458 · « **Reply #46 on:** March 01, 2005, 06:24:55 PM »

Don-I have picture of my 700HE, a belted 700 from bmg case along with a 458 Win on left in picture,
with two of my other wildcats in the middle.Ed

hubel458 · « **Reply #47 on:** March 02, 2005, 03:22:39 PM »

PA--That is great--I think that I will favor the
semi-round nosed bullets anyway.Be waiting to
see how they look.Ed.

hubel458 · « **Reply #48 on:** March 04, 2005, 06:00:09 AM »

PA- Looks great, like a Woodleigh.Do you have a supply of both jacket thicknesses,and how did diameters end up.Can you put on
a cannelure for a little extra.If not I
will do mine.. Please call and we will get things a rolling. Funds to you and bullets on the way.I get some here, then I will get good pics on all the the sites, along with info where they can get them...
Much easier if you call 1-877-551-2605.Ed.

hubel458 · « **Reply #49 on:** March 04, 2005, 06:47:14 AM »

PA--I will wait until you get all the stuff
to do them right and get them sized.
No big hurry.I will take all the .050 copper jacketed when your going, as I like soft jackets
when I do the initial load developement.
They are big but in my and my cohorts
caliber madness they are
only babies compared to the 4 and 2s we have.
They still look real nice.Perfect shape.Ed.

hubel458 · « **Reply #50 on:** March 04, 2005, 03:56:20 PM »

PA-The softs don't get out of my backstop. Those solids look great. Look like they're great for pentration.We will advertize them for you also.Ed.

bj outdoors · « **Reply #51 on:** June 03, 2005, 06:24:42 AM »

Anyone that hunts dangerous big game will tell you that having "enough" gun is important. We shoot 500 grain FMJ's out of a .460 WBY Mark V Deluxe with an acubrake that only weighs 10 lbs while wearing a PAST pad and don't find the recoil too bad. We're getting an average of 2625 FPS and developing over 7600 lbs of muzzle energy, or close to twice the energy of a .458 Win Mag and 30% more than the .458 Lott.
Barnes just sent us some turned brass 500 grain solids and even compressed we can only get 116 grains of RL 19 in the case. We're anxious to test the speed and accuracy of the solids. The 500 gr. Barnes Tripleshocks will only average 2450FPS with 118 grains of RL 19 out
of this 24" barrel.
I'm still looking for information about "blaserman" or "biggameman' that contaced me thru this forum, took my money, and never sent the .460 cartridges I paid for.
bj

jro45 · « **Reply #52 on:** June 05, 2005, 03:33:12 AM »

They made 2 bore and 4 bore shotguns also. For goose and duck hunting. Those were the days.