Gunsmithing Opening up a Sizing Die

[Silverjay]

I need to open up the neck of a bushing sizing die right below the bushing. Shouldn’t contact the neck there, but it is the way I am using it. Any ideas on how to open that up? I need about 0.005” all the way around.

 

[HoustonB77]

I would send it in to the die maker

 

[PatMiles]

^^^ What Houston said. Depending on the hardness of the die, the maker might be able to open it up.

 

[Silverjay]

Enough time and 2,000 grit wet dry on a tapered rod did the trick.

 

[GH41]

Enough time and 2,000 grit wet dry on a tapered rod did the trick.

Did you use a precision ground stick wrapped with the 2,000 grit?

 

[Silverjay]

No. Wasn’t trying to hit a precise number, just clear the Brass so the bushing would do the neck sizing. Not the transition to the bushing.