Very, Very big ammo

I would be a lot cheaper for you to just get a piece of brass or plastic and get it turned to the dimensions you want. Even dewats in that size are expensive and difficult to find.

If you have access to a lathe or a friend then it would be quite cheap. It might get a bit more expensive if you a have to go to a commercial shop to have it done.
 
yeah, now that i looked around for artillery rounds, i realize that i won't ever have exactly what i'm looking for. What i had in mind was really like a supersize 9mm round, meaning i'm looking for the same exact shape.
 
Can-down said:
Looks about 55mm at the mouth ( 2 1/4")
Here it is with another smaller shell and a .303 and .223 case...



Shellhead.jpg
Click to expand...

At the top, barely visible is 6 Pr, for 6 pounder. It is 57mm in dia., and was used an antitank gun round.
Is it 441mm or 464mm long? It looks to be the shorter one.

57 x 441R
WW2 6 pdr 7 cwt AT+AFV + Molins a/c

57 x 464R
WW2 6 pdr 10 cwt Twin Six coast defence

The other case you have looks to be a 40mm Bofors.
 
Thanks for the info tootall, The 6 pounder is just under 440mm and the smaller one is 303mm long and close to 40mm at the mouth. The small one is marked 2Pr No 2
Here's a look at the stamps on the smaller one,
Shellno2.jpg
 
a brit 2 pounder would be close, lil long tho. for a 223 look, the curent 30 mm american round is very close. there is also the 1 pounder rounds that are almost a dead ringer for the 9 mm except they are rimmed

57USA30MM.jpg


10537MM.jpg


O9CANADAINNAVY2POUNDER.jpg
 
There are a few 30mm cannon dummy rounds around.

I've been eyeballing a 20mm case and thinking it might be fun too blow the sides out to form a straight sided case out of it, just to say I have the biggest baddest handgun round...:)

If you start with an artillery shell, you get a rimmed round, if you stick to brass cases. If you are after a rimless round, I have not seen many above the 20mm size in brass, they tend to go to steel to keep the costs down. Some though.

Drawing what you want, and having it turned up as a custom job, is probably the best bet for timely success. Consider a composite piece, a piece made up of several parts either press fit, sweated together with solder, or other adhesives. That would cut you costs WAY down, as the base of the case can be made from flat stock, and the body can be done from tube. Brass solid is $$$.

Cheers
Trev
 
sewktbk,

Finding something is very similar dimensions to 9mm brass (in a blown up version) the size of a forearm is difficult as most larger projectiles such as artillery, are made in a neck type style such as the 223 brass you mentioned. Your best bet for larger size, similar dimension are those mortor rounds, but of course mortars have explosives on the end and not a bullet, so getting one "off the shelf" is not going to work for you, and finding a specialty made dummy round will be difficult.

I would suggest:

Go to Home Depot, grab some PVC piping with an end cap unit (it will create the lip at the bottom of the cartirdge), then walk around looking for something to replicate the round nose, you might find something (I cant think of anything) and if not, go to an arts and craft store and pick up some paper-mache and make your own to fit to size. Then grab a can of Krylon metallic brass or gold spray paint, or if you have an airbrush use that and paint to taste. You could even use some thin browns if you dont want shiny brass to touch it up and give it an older look.

http://www.nextag.com/Krylon-Brass-Metallic-Spray-634444095/prices-html
 
Just building on my post above, I also noted you mentioned it was science project. Well if you take my idea to use a PVC piping for the cartirdge, you could make it even cooler by cutting out a thin piece on the side, putting some thin transparent plastic over the cut out, and then you can fill in the bottom with coffee grinds or some other dark powder to replicate the gun powder. You make a neat cut out. Could do the same on the bullet to show the lead inside by spraying a portion grey

Just some thoughts. Home grown projects are much funner then off the shelf solutions
 
Depending on what it's for (you've kept us in the dark on that one), you could also turn one out of wood. A piece of 4x4 would give you the exact size you're looking for. You could turn it as 1 or 2 piece. it's easier to find and operate a wood lathe than a steel lathe.
 
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