Rim size 50/70 to 12.7x44R

[tbrwlf]

I am getting a rolling block that was 12.7x44R. I have had the chamber reamed out to fit the 50/70. They are not reaming out the rim slot.
So I need to trim my 50/70 brass to 12.7x44R diameter at the rim.

Does anyone have the correct rim diameter for the 12.7x44R?

Thanks, Trevor.

 

[ben hunchak]

The .50/70 is .660" and the 12.7 is .624", enjoy!

 

[mbogo3]

Why not have the rim slot reamed out too?Then use 50-70 brass.........Harold