Just went and tested a few 4198 loads with a 50 gr Sierra.
shooting prone over a box. (not the steadiest) 3 shot grp
19 gr 3/8 "
19.5 gr two in the same hole and pulled the 3rd shot an inch right
20 gr 7/8 "
haven't cleaned the gun since before I shot up a box of Hornady 40 gr V maxes Saturday
can't beat that for an off the shelf Pawn gun !!!