I have a al-48 in 20g that I bought for my wife many years ago. It has a 24" barrel and is light as a feather. Probably less than a case of ammo through it in about 30 years. I can't hit anything with it. About 10 years ago I let my then-teenage son use it for a while. It had been in safe, more-or-less unused for a long time and did not cycle well. I'm a veteran old-school A-5 user, so I'm a least a little familiar with the nuances of that action, ie, ring position, dry vs. lubed mag tube, etc. After trying a lot of things that didn't work, what ultimately solved the problem was replacing a couple of the parts that slide onto the magazine tube. He graduated to something else after a couple years and now it's back to a safe queen. If it's ever going to see regular use where 2nd, 3rd, etc. shots are important, it may need a new set of rings. Time will tell.