Deep Six
09-08-2015, 09:14 PM
A new gun (ok, still waiting for them to hit the shelves) calls for a new mold! I knew right away I wouldn't be happy with either the Lee or RCBS offerings, and even the NOE and group buy stuff always seem have a dimension or two that bug me. I've never bought from Mountain Molds because I'm usually looking for more than a 2-banger. But 2 cavities should be plenty to feed a 480 so I figured I'd give MM a try. I've heard good things about Dan and now I will experience his product myself!
This is loosely based on the Cast Performance 375 gr design but I optimized it for the shorter 480 case by lengthening the nose past what would normally fit in a 475 Linebaugh with its 1.400" case. I added a 0.006" shoulder to the nose to prevent any interference issues like I've experienced on a few non-shouldered designs. Anyway, here's the MM program dimensions I picked
This is loosely based on the Cast Performance 375 gr design but I optimized it for the shorter 480 case by lengthening the nose past what would normally fit in a 475 Linebaugh with its 1.400" case. I added a 0.006" shoulder to the nose to prevent any interference issues like I've experienced on a few non-shouldered designs. Anyway, here's the MM program dimensions I picked