Deerdown, I wouldnot say you ruined your gun by popping a 1/2 dozen through it, But if you are concerned take it to a respectale dealer and explain the situation and have him look it over.

As far as the bolt closing hard with the reloads you got from your friend, that could be caused by a few things. it could have been due to long seated bullets, or the cases not sized correct, or could be that they needed trimmed. Have you tried any of the ammo that you have used prior to using the reloads? Lets face it you would know your gun better than any one else.

Shane

sounds about like a 7mm weatherby mag charge weight.... if the guy is like 80 years old its possible he goofed and used 7mm wby mag data when loading your 7 rem mag??

this quote right here is what would scare me the most if I was you. I dont care if he had the exact same make and model gun you have noone should reload for another person without doing some testing before the first bullet is seated. Why would he load up 4 boxes of ammo not knowing whether theyd even cycle through your gun? I have dies from RCBS that will resize casings for my 7mm Ruger but they wont even allow me to close the bolt on my Savage. I needed to buy a second set of dies for the Savage. Be smart and dont shoot those loads. Take some time and learn all you can about reloading and get into it yourself, that way you KNOW whatYOU did instead of relying on someone else.