Iowabuck,
My 300 mag is a heavier rifle and has a mercury recoil suppressor in the stock.
Has a little less recoil recoil and is not as sharp as my 7mag.
I have a scope with more eye relief now also.
I did not say the 300 had less recoil than the 7mag, but it does, I also have a removable muzzle brake on it which I only use for target shooting.
I hope this is sufficient explanation for you how a 300 mag can have less recoil than a 7 mag.
My flinch was all in my head and with that 7mag I could just not get over it.
Switching to the 300 mag in a different rifle with a different set up I was able to retrain myself and get over the flinch.

A properly mounted scope won' t do that! ANYONE who gets hit with his scope (and even some of the " experts" do this) has only him/herself to blame! For heavy recoilling guns, by all means get a scope with at least 4" or more of eye relief, and mount it as far forward as possible!!

Well, a properly mounted scope will do it, if you misuse it the right way.