I ran across a Cooper Model 22 in .22br today and just had to bring it home. It came with a set of full length sizing and seating die. I am having trouble finding some 6mmbr brass. Can I use 7mm br brass and neck it down in one step? What brand of brass works best?

M16

Go to this guy Russ Haydon. It's a small family business. You will get good customer service. Russ has a wealth of knowledge he will share with you. He is a varmint/benchrest shooter and a gunsmith. He should have the brass in stock.

Russ Haydon

Midway, and I believe Cabelas, carry 6 BR brass...

I was looking at availability, thinking about putting a 20 BR together....

cheers
seafire

m16: buy laupa 6mmbr brass. The best there is!!

Look here: http://www.6mmbr.com/22BR.html