I'm certainly interested in how well they'll work as I would like to eventually buy a Trade Rifle barrel to drop into my Deerstalker stock to which I'd top it with a PC scope for use with sabots or conicals in the hopes I can hunt beyond 150 yds.

Lyman's states their barrel works well with PRB and heavy conicals. And so I wonder how well a .45 cal 300 grn SST would work.