I posted this in reloading too.

Ok:

I need to get a new bushing for our ammo master 2 press. The current bushing is too small to hold the .577 NE dies.

I checked RCBS' custom order catalogue and spoke with their customer service department, and the answer is not clear.

So I'm taping into the wealth of knowledge on AR for help.

Here are the options I have. Which one do I need to get:

1 1/4" - 18 to 1" - 14 or 7/8" - 14

1 1/4" - 12 to 1" - 14

1 3/8" - 12 to 1" - 14

1 1/2" - 12 to 1" - 14

I'm thinking the 1 1/2" - 12 to 1" - 14, but basing that on a pure guess.

Anyone give me some guidance?

the Ammo Master has 1 1/2" threads, so what ever the threads are on the 577 dies, that's the one you'll need.

I have a couple, let me know what size you need and I'll dig them out.