For me 100 yards shot is not too much of an issue now that I have shot enough and had gotten good results with starlings and doves hit. But another 15 yards or more, that's a huge challenge for me. I guess just like anything in life, one must try and keep on practising in order to get confident and consistent. I remember back in the days hitting bulleyes at 25 yards was difficult with my HW97 break barrel. Then with PCP that had gotten much easier and I gradually improved my shooting out to 50 yards, 75 yards and recently 100 yards. So my goal and next challenge is to hit consistently out to 150 yards and maybe beyond. Of course, my gear would have to be tuned properly and have the capability to do so. And most importantly, my shooting skill has to evolve as well. Practice, practice...