I have a very complete boxed set of Lyman 310 dies in .44 special caliber, even has the nut cracker tool.
There is one die that for the life of me I cannot fathom what its for.
It is marked .44 spe MR, but what does it fit on the cartridge or bullet?
The inside diameter is near .439 bore.
The box shows a picture of it stating it's a Muzzle Resizer.
I tried some seated bullets in .44 special brass and they don't seem to fit, it would be a crush fit and I fear the cartridge would be sadly reduced to uselessness.
What purpose does the die serve.
Swagerman