I use high BKLs and a 33 yard zero.

If you have Chairgun, put in velocity of 775fps, pellet weight 8.44, BC of 0.024, scope height of 1.85 inches and zero at 33 yards - that gives 1st mil-dot just past 46 yards. Gives quite a safety margin in that if I put the mil-dot in the centre of the kz, it should hit from 37 yards +. Bit risky but it takes the edge of having to range guess accurately. A 35 yard zero would be better but the garden isn't long enough

If you haven't got Chairgun then e-mail/pm me your set up details and I'll get back to you