I have two buddies that use the Remington semi's... One a 742, and the other a 7400. The 742 has always got cleaned where you could reach with oil and a rag, and has never been apart for a cleaning... The 7400 was brought to me last summer for me to refinish. It was the first time the gun had ever been apart, and cleaned... It had only ever been wiped down on the outside. Neither of the two have ever jammed a round... And the 7400 was the dirtiest rifle I have ever seen. No idea why it even still fired lol.
Here in Nova Scotia the 740/742/7400 is about as popular as the Winchester 94 used to be. The two I mentioned are the two I am most familiar with, but I know many people that use them, and only know of 2 or 3 that have been retired to the gun cabinet because of failures. They seem to have a bad reputation, but as far as I can tell from around here the reputation is worse than the rifle.