Hornady basic belted brass will just about make it to the top of a 416 Rem Mag form and trim die. Then run it through the 416 Sizer, voila.

Make sure you spend some time polishing the inside of the die. Use your imperial sizing wax on the cases, but be smart about it.

Start bugging Jamison about when they will launch their line of 416 Rem Mag....

Thanks for the useful advice.

Emory

You are most welcome.