What distance/cartridge was that mate?
When I was in my teens I was part of a group around Llanrwst, betws & snowdonia ran by a bloke called phil lloyd. Phil had hounds, terriers & some right mongerels, and would work his pack as we waited. Understandably he was very picky who he'd have come along, shooting nothing but ground game. A good way to learn some self control & safety is shooting driven fox.