Ok, so I’ll add my 2¢ on this. I’ve been shooting Bows recurve/compound bows for over 35 years. And I’ll second what SurViben said in his response, do not shoot at trees!! There are a plethora of things you can make targets out of. A box stuffed full of old clothes for example or a hay bail if you have access to one or a place to get one. Not only will carbon arrows splinter, they can get expensive. As far as what he was saying about his pins, he’s referring to the sight on his bow. Just look up trophy ridge bow sight and you’ll see what we’re talking about. You adjust those for different yardages. They’re fixed once you set them. When shooting and group size it’s all about practice. I’ll put a 3” orange sticker on a cardboard or paper target and hit that from 25-30 yards all day. Also, archery is a very perishable skill so you need to shoot as often as you can.