Blanking die size

[EchoJuliet]

Hello all. My first post here.

Been looking around but can't find a hard number. What diameter of blanks for a 45 acp set. From what I read most blanking dies make coins for 45 to start with then can be drawn down for other size.

I am a cnc machinist by trade so planning on making my own.

[KAYDADOG]

This information is based on Dave Corbin's DC-Cups program:
Using a final jacket diameter of 0.450" and 0.032" material this is what the program calculates:
JACKET LENGTH = 0.500" OR 3/4" LENGTH
BLANK DIAMETER = 1.0191"

Different jacket lengths can be entered to obtain different blank sizes.
If you need something different calculated PM me information and I can plug in the numbers.
I have also done some blanking and cupping operations for gas checks using commercial made dies with excellent results.
Hope this helps.

[EchoJuliet]

Humm. How does that work when corbin sells 1 inch wide copper?

Must be thinner jacket wall as that material is only .030 to start.

[rolltide]

Corbins sells strip up to 1.25 at .030 and offers 1.4 strip in heavier weights as well.

Scroll down to the bottom of this page:

http://www.swagedies.com/mm5/merchant.mvc?Screen=PROD&Store_Code=CBST&Product_Code=JMK-1-H&Category_Code=jmkits