I set up an Accura V1 for a great friend a few years back, who just so happens to be in northern Saskatchewan at this very minute hunting bear. His breech plug was opened to shoot BH209 (.031"), he uses 75grs by WEIGHT and a Barnes 250gr. TMZ bullet. At 100yds, it'll dot the (i) and is a very impressive shooter. He's killed EVERY animal he's ever shot at with it and some at considerable distance. His nickname is "Gutpile", as every time his rifle fires, there's always a gut pile left behind.
Ultimate Firearms BP Xpress Hunter
Leupold VX6 3-18x50 CDS Illuminated Dot
T/C 209x50 Pro Hunter - 2# Trigger, 2X Hinge Pin - 51# Hammer spring - HD Locking Bolt Spring - HD Firing Pin Spring
Nikon Monarch 2.5-10x50
75grs. WEIGHT BH209
Barnes 250gr. TMZ's