Like they said, it's all in the practice and form. I shot at targets of varying sizes and ranges from as many angles as possible for a full year before I even thought of going hunting, having a sinkhole in your front yard comes in handy for that. One thing that helped me once I got my form clean enough was to use focus targets, I use Daisy Shatter Blast™ targets stuck to the heart zone of my 3-D. They're bright orange discs about 2" in diameter made from clay(or possibly plastic), they're made for airgun shooters. Those orange spots naturally draw your eye toa very small area and help you lock on, then form and release take over. When you can shatter them at will from one range you just step back a pace or two and start over until you can do it again consistantly. The difference a simple step back made surprised me, you wouldn't think it would have much effect.