After ya finally get that rifle sighted in, don't clean and oil your bore. The first shot you make with it will usually be quite high. I bet quite a few misses occur because of that.

Do clean and dry the bolt innards before hunting in sub freezing weather if the rifle was out in the pouring rain days before another hunt. I've only read about frozen firing pins 'til it happened to me one 20 degree frosty morning on a what could have been a very close shot.