World Leader in Bullet Swaging Technology
Store Front Account Search Product List Basket Contents Checkout
Sign In (optional)

Choose a category...

Specials
Presses
Bullet Swage Dies
Jacket Maker Sets
224 / 6mm Swaging Kits
Airgun Swages
50 BMG Tools
Books, Print Editions
Software
Ballistic Test Media
Bullet Tips
Bullet Balls (Polymer)
Bullet Jackets
Rifle Jackets
Handgun Jackets
Base Guards
Chemical Products
Copper Strip/Tube
Lead Wire
Lead Wire Extruders
Core Cutters
Core Moulds
Powder Metal Funnel
Cannelure Tools
Bullet Pullers
Sportswear
Heat Treatment


Delivery Time


Jacket Reducing Die, Deep Draw
 
Jacket Reducing Die, Deep Draw Quantity in Basket: None
Catalog No.: JRD-2-S
Price: $538.00
Shipping Weight: 1.00 pounds
 
Starting Diameter:
Final Diameter:
Wall Thickness:
Special notes (optional):
Indicate if you are sending sample jackets:
Yes, I am sending a dozen sample jackets.
No, make the die for use with Corbin jackets.
I already sent jackets prior to this order.
 
Quantity:
 
JRD-2-S commercial jacket drawing die uses different alloys to withstand the higher pressures and friction of reducing a jacket while thinning the jacket wall. The precision of draw (wall concentricity) is improved by slightly reducing the wall thickness. The punch is a close fit to the ID of the jacket after reduction.

In addition, a hardened alignment guide bushing is fitted to the punch and to a recess in the die mouth, forcing concentric alignment and improving the wall concentricity. A stripper plate is provided for the diameter and wall thickness of the finished jacket, which pulls the jacket off the punch on the down stroke of the press.

Copper tubing or commercial drawn jackets can be reduced and lengthened considerably in several stages, by using a sequence of draw dies. Generally, a one or two caliber step in a single draw is the maximum reduction without breaking the end from the jacket, but this depends on the starting caliber, wall thickness, and material hardness.

As a general rule, a single reduction should be held to no more than 70% of the original caliber. That is, if you start with a .450 diameter jacket, figure the maximum possible reduction by taking .450 x 0.7 = 0.315 inches. So if you ask for a 45 starting size with a .284 ending size, it invalidates the order. You can do that with two draws, first to something in the area of .35 caliber and then from .35 down to .284, no problem. But you cannot do it in one pass with one die.

Thinning Jacket Walls
Please note that the same diameter cannot go in and come out with any changes to the jacket walls. Making a die that takes 224 to 224 and reduces the wall from .018 down to 0.012, for example, is impossible. The jacket would just drop through the die! There has to be enough resistance to support the force of the jacket material being squeezed between die wall ID and punch OD, which is what reduces the wall thickness. Any size of punch will simply push the same size jacket right out the top with no changes there is no diameter reduction.

In order to make a jacket draw die, we need jackets to draw. If you are using one of the standard Corbin jackets, no problem: we have them here. If you are using some modified jacket or one you bought elsewhere or made on your jacket drawing tools, we need a dozen samples so we can test and adjust the die with it.

Please note that "Corbin jackets" means any of those we stock and have on the shelf, listed for sale on this web store. It does NOT mean jackets you have modified, drawn down, trimmed shorter, or heat treated. If we can take it off the shelf and use without modification, then it is a "Corbin jacket". If we have to do anything else to make it like the one you want to use, we need those samples to proceed. Otherwise, we cannot guarantee results unless we are using the same exact jacket with the same modifications that you are using, done by you with your own techniques. It's for your benefit, even if it does require a little more effort and postage.

The hardness, thickness, diameter, ID, wall taper -- all of these things are critical for us to know in order to build the right configuration of punch and exact diameter of die. The die diameter usually is NOT the diameter of jacket it makes, due to spring back in the material. Without having samples, we can just guess but you wind up with the results. If you are paying for high precision end results, it makes good sense to send the required samples needed to make it happen. Not one or two, but at least a dozen. Then we can do a number of tests and adjustments to get it perfect for you.




EXPORT RESTRICTIONS: We can ONLY ship to USA locations, Canada, or the UK at this time!
Note: 3.5% Bank Card Processing Fee added by Card Processing Service. VCC Number is required for security: send by email with order number.
Corbins.com
Main Web Site
Swage.com
Document Server
BulletSwage.com
Alternate Site
Swagedies.com
Web Store