Actually, I didn't know that autoloaders have a recoil spring in the buttstock. Guess I need to take a closer look at the manual for my 1100. Anyway, I was reading an article on gun maintenance in Tennessee Sportsman and ran across this paragraph:
Good advice? How often do you all clean this spring in your autoloader?
One special note: for autoloading shotguns, be alert to the single-most-often-overlooked auto-shotgun maintenance item--the recoil spring in the buttstock, which is a natural grit/gunk trap and is the most common source of all "unexplained" autoloader failures. Whatever other auto-shotgun cleaning and maintenance you may do, get a stock-screw bit for your screwdriver, yank off the stock (at least once a year), and clean the spring. An amateur gunsmith buddy of mine was hired a few years ago to look at about a half-dozen "problem" Remington 1100s that a local gun shop had acquired. The shop offered him $30 apiece to look at them. He pulled the stocks off all six and cleaned the springs, and they worked fine.
Good advice? How often do you all clean this spring in your autoloader?