On days when I have been forgetfull with heavy loads, big bores will knock your scope into your head. Never happens to me in a stand shooting postion, but sometimes when I am benching.....

Dumb biscuit forgets to stock weld some times!

Just try to get a scope with decent scope relief and try to remember to put your stock to your cheek the same time every time. Some 45 70 loads out there are pretty stout.