TTT for this old thread!
I have removed the peep sight and from this rifle and installed a Smith Enterprises rear ladder barrel sight, and had Sharpsguy make me a copper penny front sight.
Am working up a load with a .513" 700 grain grease groove flat nosed bullet with a .320" meplat using black powder, it chronos at 1250 fps with a hefty charge of Swiss 3FG lit with a CCI-250 primer, it is extremely accurate at 100 yards so far with groups averaging 1.5 to 2"s, I can't shoot iron sight anything any better than that.
All without wiping between shots, fouling and function is a non issue with this short nosed bullet, still filing the front sight to get the bullet landing about 5 to 6"s high at 100 yards with a 6 O'Clock hold, this chit is fun!