Over the years, the guys I hunt with in Maine (10 or 12 of my friends/relatives have 740/742/7400s) have developed this practice. Many years ago, when I was just a little shaver, my Dads 742 jammed on a follow up shot on a deer. Hunters of the day wore wool for the most part and they carried their clips in their pockets. Needless to say, after several seasons, the pocket lint, etc. would get stuck in the clips, especially since every oiled their clips up so they wouldnt stick. Anyway, my Dads gun jambs and later that night at camp, an old lobsterman who used to hunt with us (now deceased) told my Dad Ill fix that gun for ya. He took both of my Dads clips (unloaded of course) and dropped them into a pot of boiling water. After about 10 minutes you couldnt see the clips in the pot, as the water was so dirty. Lint, pine needles, etc. came out of those clips. After the boiling treatment they went into the oven for half an hour to dry out. Once dry, no oil was applied and the old lobsterman (a little tipsy after having a few drinks during the process) took the clip, loaded it up, slapped it into the rifle, opened the door to the camp, worked the action, placed the gun on his hip pointing out the door and towards the sky (camp was miles from anyone) and squeezed off four rounds as fast as he could pull the trigger! Ya wont have any more problems with that rifle again, he said. Since then, the standard practice is to boil out the clips every other season or so. Ive even done it with my 7600 clips. I keep my spare in a leather pouch on my belt but youd be surprised at the amount of crap that will still get in there. Just figured Id share