NMJM
FNG
If misses are that big of a factor that is where I would start. Why are you missing? Over confidence in shooting ability, equipment issues, environmental factors, nerves? Get a shooting coach or go to a school. Do the majority of your practicing the way you hunt. Add some pressure to your practice sessions. Do 3D courses or precision rifle competitions. Honestly evaluate your abilities and work on your weaknesses. Good luck!!!!