I bought my 7400, .30-06 new in 1986. It served as my only shooting/hunting rifle for 10 years before I bought my next...but still served as my primary range gun and hunting gun through today. I really cannot say as to how many rounds have been fired through that gun...in the thousands. To this day, it is probably my favorite rifle...probably more for sentimental reasons than anything else as it was my first rifle. It's success rate at 1 shot kills on game is 100%. Although, I am a stickler for a "perfect shot" and have passed on many more shots than I've taken. My rifle has never jammed once. The only time it wouldn't cycle was when I tested out Remington's Managed Recoil loads. And, that was due to such a light load, not rifle malfunction. I had to manually cycle the action after each shot with that load.
Now, I've heard a lot of bad talk regarding those rifles. But, I can speak of what mine does first hand. Maybe because I bought mine new and took care of it since day one...I don't know.