Anyone have any good reduced loads (unique, trail boss, ect.) for shooting cast bullets in a 375 ruger? I'd like to load up some 300gr cast bullets fir plinking around during the off season.

First mark how far your bullet seats in the case. Fill the case to that line with trail boss then weigh the trail boss reduce the load 30 % that is your starting load. I have heard of people going down to 50% with light cast bullets. NEVER COMPRESS Trail Boss.
Bill

in other words.. 70% of useful volume after bullet

Hear is a load for the .375 H&H 235 gr Speer 19.0 Trail Boss =1091 fps, 26.3gr =1144 fps
Your velocity may be higher with cast bullets as the drag is less. I think it would work in the .375 Ruger well at least a starting point. Remember never compress Trail Boss
Bill

Thanks guys. I really appreciate the info!