22-50BMG?????

17 March 2002, 09:22

<Powderman>

Owwwwwwwwwww............

Not a wildcatter, but I suspect that there might be two obstacles to that project:

1. The bullet would turn into a blob of plasma in the bore from the heat of the powder burning. It would self destruct.

2. The bore life would be measured in tens of rounds. IMHO, you would make it a smoothbore really quick. Talk about overbore!!

Still, I'd like to chronograph something like that!!!!

(Homer Simpson drool: muaaaahaaaaaaahahaha........)

------------------
Happiness is a 200 yard bughole.

17 March 2002, 10:24

Jiri

I belive .17/.50BMG, .14/.50BMG ir .10/.50BMG will be "better", of course, why so small case ? There are much "better" cases like 155 howitzer shell and some battleship or old nazi guns (800mm or so), you can make 500yard deep hole in rock, put barrel to it and of course aim it to the Moon (bullet would be make from "Black hole" substance) .. .

quote:
Originally posted by Powderman:
Owwwwwwwwwww............
Not a wildcatter, but I suspect that there might be two obstacles to that project:
1. The bullet would turn into a blob of plasma in the bore from the heat of the powder burning. It would self destruct.
2. The bore life would be measured in tens of rounds. IMHO, you would make it a smoothbore really quick. Talk about overbore!!
Still, I'd like to chronograph something like that!!!!
(Homer Simpson drool: muaaaahaaaaaaahahaha........)

17 March 2002, 10:36

HenryC470

I think you'd actually get about 4000 f.p.s. if the gun didn't blow up (big if).

I'm with Powderman on the bore life. This cartridge ought to be a real welding torch.

H.C.

17 March 2002, 10:43

<JAX>

quote:
Originally posted by Jiri:
I belive .17/.50BMG, .14/.50BMG ir .10/.50BMG will be "better", of course, why so small case ? There are much "better" cases like 155 howitzer shell and some battleship or old nazi guns (800mm or so), you can make 500yard deep hole in rock, put barrel to it and of course aim it to the Moon (bullet would be make from "Black hole" substance) .. .
Jiri you sound like a real asshole but I'm sure you had your share of stupid questions for this forum so give me a break!!!

17 March 2002, 12:21

<Headstamp>

Have a picture of one of these in one of my wildcatting books.

I believe it would take about 10 minutes for all the powder to burn out the end of the barrel after the bullet exits the muzzle. (grin)

Regards

17 March 2002, 13:40

<Vincent>

If you are serious about making .224 bullets really fly get hold of computer program 'Load from A Disk' and do some homework. I have done extensive work with this program and it is surprisingly accurate.

It appears that 'bore capacity' is related to projectile size and what is overbore for a 52 gn projectile isnt for larger projectiles like Sierra 80gn VLD.

As projectile gets bigger program shows useful gains from larger cases where as with 'traditional' 40 to 55 gn projectiles no useful gains are available after about .220 swift size although small margins can be had from likes of .22 CHeetah etc.

I suggest you look at a fat case that can be shortened to an appropriate length, start with a design that follows the benchresters 'short fat case' concept, sort of like a large PPC. Doesnt matter how fast they are going if you cant hit them!

I believe a slightly shortened .338 Lapua Magnum case using aforementioned 80gn VLD would be pretty good for ultra long range varminting. Still to build it so cant comment on barrel life.

Like to hear others experiences of large cases with larger .224 projectiles.

17 March 2002, 20:14

Coyote Slayer

Well i have a 224 Clark with the 80gr SMKBT with a load of 60gr of 8700 to give me 3700fps out of a 30inch 1 in 9 twist barrel up to 400 yards you need a dust buster to get your fur but once it hits 400 plus yards it is a real killer it takes 80 to 120lb wolves right off there feet Hope this was what you were looking for Have a good sunday:Coyote Slayer

18 March 2002, 09:24

Brian M

Coyote Slayer,

According to my info,the 224 Clark is made off the 257 Roberts.Is this the one you are using,and if so,how in the hell are you cramming 60 grains of powder into it?Max capacity of the Roberts case isn't even 50 grains.

------------------
I'm out to wrong rights,depress the opressed,and generaly make an ass of myself!

18 March 2002, 07:15

Coyote Slayer

HOW!!! easy fire form case with 13 grans of bulleye and the reast of corn meal once case is formed use 4 foot drop tube and yes I am working with 257 roberts winchester case its that simple also the new case will hold 61 gr of water and that is useing a 6 mm case not the roberts case I have found as Mr.Clark did the 257 roberts case is the only way to go they last a lot longer than the 6mm case.
have a great Sunday:Coyote slayer.

[This message has been edited by Coyote Slayer (edited 03-18-2002).]

18 March 2002, 19:50

460wby

This is an usual round here in Norway!! Every guns/hunting-shop has this in their shelfs as standard. We usually rechamber some 222 rifles.

------------------
Shoot well, and hit hard.

Arild.
(And YES, I'm a NRA member!)

24 March 2002, 08:19

<bens>

If you do decide to do this round, please provide a picture to the forum. A video tape of the first firing might be worth doing..... I have to agree with the rest of the people on this forum about the bore being spent after a few shots.

24 March 2002, 08:54

Jiri

460wby: Could I send you some rifles to rechamber ?

24 March 2002, 14:28

<DMCI>

I heard of a guy once that built one. Called it the .22 Bomb.

Last word was that he went to the range to do some load testing.

Haven't heard a word about the project since.

25 March 2002, 11:03

460wby

DMCI.
That was a really good one!!!!!!! I must say!!
My wife just looked in to this room, wondering if I'm starting to "loose it", finding me alone laughting loudly!!

------------------
Shoot well, and hit hard.

Arild.
(And YES, I'm a NRA member!)

26 March 2002, 16:11

<jeremy w>

The bullet would surely disentigrate upon hitting atmoshpere. Also, what advantage would this cartridge hold over say a .378-.22?
I am guessing you can only overbore so much before you are wasting time and not gaining velocity. What do you think?

27 March 2002, 14:08

Coyote Slayer

You are right on the amount of powder I need to find the guys name but he was working on the 6.5 X 300 weatherby and found he could load it with a lot more powder and got no more speed than he did with the frist loads just signs of high presure.

All so went that with my clark up to sixty grans there was a lot of FPS per grain but when we went to 61gr there was only a 10fps gain we had reached the limit of the case and started to see signs of pressure that was not there with the sixty gr load Have a good nite: Coyote slayer

18 April 2002, 01:19

Pecos41

All of the assumptions about "more being better" disregards the law of diminishing returns. There comes a point when the more you put in, the less you get in return. This idea to neck a .50 cal down to .224 is pure fantasy and far from a new.

I believe many years ago, just for research purposes, some organization necked a .20 mm cannon shell down to .224. The results were very little velocity increase over a .220 swift and a barrel life of 4 rounds.

If this sort of thing sounds smart to anyone, go for it. Just don't expect anything for your trouble but a good tent peg.

20 April 2002, 13:07

<franklin>

I heard at the range yesterday that P.O. Ackley has tried this.The guy said this with a straight face.

20 April 2002, 16:04

<yorick>

Not really the same thing but I think BMG (regular poster here) tried putting a .22 bullet in a 30 calibre sabot, then put the .30 in .50 sabot and fired it out of his .50 BMG.

Don't know if he got any chrony readings off it though...

23 April 2002, 04:42

<BMG>

You rang?
I have actually seen this round, but as a novelty only. I asked about it and the guy said that 9 out of 10 cases didn't survive the case forming process. Summary= Too much labor, too little return just for a novelty.

As yorick pionted out, I have put a .22cal bullet in a .22/.30cal sabot & then put that in a .30/.50cal sabot. I have not shot it, but it does look neat :-) I'm guessing velocity at or around 6000fps, but you would be lucky to hit the broad side of a barn at 25yds. There is way too many variables to throw off bullet/sabot concentricity.

I'm running a little 'project' soon and I will let you guy's know the results ;-)

23 April 2002, 09:04

Need Just 1 More Gun

I think there was an article in Precision Shooting a year or two back about some guys who built and shot a 22-50BMG.

I seem to recall that barrel life was pretty short--less than 200 rounds.

23 April 2002, 17:08

Fiftydriver

The only propellant that would burn slow enough for this round would be "fire-wood", I hope this question was just a joke.

If someone actually has the money to waste on this type of a round then I need to get to know them and try to get some for a few more practical projects I have in mind.

No flame intended to anyone!!!

24 April 2002, 09:03

<Cardinal>

I know shooters on biggerhammer.net have taken a standard .50 and shot 5.56 bullet using sabot through it. First use a 50-to-30 sabot, then a .30-to-224. The only problem is that only 5.56 SS109 and AP bullets will stay intact. I belive the velocity was around 6000 fps+ (The chrono max out so exact velocity is uncertain).

I remember reading about a wildcat in a norwegian reloading manual, called 22 Eargessplitten Loudenboomer Not 100ï¿½ certain of the spelling). This was a .378 Weatherby necked down to .22, and they said it was completely useless. Had no barrel life and the velocity wasn't all that great...