Having a hard time finding what to do,let me explain myself ,i want to shoot pigeon from 80 yards to 90 yards away on a 10° down hill slope from my house to the barn i bought an air venturi avenger and cannot get it done consistently, so i bought a benjamin gunnar, can't do it either not consistently miss 3 shot hit one,then i bought a challenger pro 30cal, can't even group less than 3 inches at 75 yards i cannot go with that, so i goggle "what is the best pcp for 100yards pigeon hunting "so i bought it in 25 sniper with a heavy liner, what should i do next? I got the rifle, I've shooting few hundred rounds to break in understand it etc now I need to buy the best proved ammo for it,what caind slugs what size etc.should i try pellets first for 80 yards or should i go straight to slugs? Please don't hesitate to give me your opinion because i read everything carefully so if you see others opinion but yours is different somehow that is the one im looking forward to read thank you all so much