If your shot cannot be placed with surgical precision at ranges you expect to hunt, you are using 'too much gun' for your capabilities. A hunter owes it to the game to ensure a quick kill. Practise and exercise with the chosen hunting rifle/ammo all summer: when the season finally rolls around you won't embarrass yourself or your long-suffering guide/outfitter. But we here all know that already, don't we? Sorry to preach.