I just got some guns from my farther-in-law, questions and help on a couple. One is posted in different forum, because it's an old Rem. rolling block. I got a Mobel 70 .264 Win. Mag. Going buy the serial # it was made in 1964, but not before. How bad is this round compared to a .30-06 say. Will this knock the old pace maker outa my left chest ? I am right handed. It is in mint condition, the sites have been removed and screws installed because it has a scope, I understand this was needed on these because of the height of the sites. It came with 5 boxes of ammo, most likley from the '70s but they were always inside and in a gun safe. It has 9 empty rounds and that is all that was ever shot out of it. Any advice on this gents would be helpful. Thanks.