In almost all cases... shooting 150 grains of powder will do a couple of things for you. It will decrease your accuracy. It will cut the life of your barrel in half. It can cause a serious flinch. And your shoulder, cheek bones, and eye brows will hate you when the rifle kicks the snot out of you, bucks into your face, and the scope comes back and smacks you above the eye.

Too many people fall into the 150 grain load hype. All they end up finding is their rifle does not shoot that well and the little they gained by increasing the powder charge makes no difference to the animal they shoot.

100 grains of powder should be fine out to 150 yards. Shot placement is the most important thing you need to worry about. If your rifle is not accurate, the most powerful load in the world will do you no good if you can not hit your target.