Which slug do you guys use in your .25 slug liner? Best I can get out of my 600mm King .25 at the moment is an inch at 50 yards, 115-120 bar, large wheel 19, small wheel 2.75 plus one or 2 clicks, with .250 H&N 34 grain. (tried a bunch of others, all lighter than 34) At 35 yards various...