Home Forums Hunting & Shooting Express Rifles and Big Bores Only 458 x 1.8" for Michigan deer hunting in Zone 3

Drill a hole in a piece of wood 1.9 inches long - trim thickness
Stick a case in.
Use any metal cutting device to cut it off. Watch that you don't cut the block.

Or, buy that trim die.
Using any grinder, grid the bottom until it's right.
Debut.

Or, since you aren't doing thousands.
Trim them.