ISO thick aluminum for GCs/checkmaker

[Boolseye]

Hey folks,
I will be sizing my 314299 boolits to .315" for my oversized Nagant (slugs at .314" groove, .304 bore).
I have a Pat Marlin checkmaker, but I need some suitable Aluminum, or possibly cu.
30 gauge copper checks don't even kiss the die–I think the metal needs to be .014 or .015 to size properly.
Anyone know where I can get some suitable stock?
-BE

[elwood4884]

Yonky may be able to help you at www.coilandfoil.com.

Yonky is your best bet for quality stuff.

[TreeKiller]

Contact Pat, He will make a new male form die so you can use the .014AL. He made one for me for the 316299 from NOE. Measure the shank of the Boolits and he can make one to fit.

[Boolseye]

Thank you for the replies. That's some helpful info,
-BE