Browning S-A .22 failure to feed issue

I have a Browning semi-auto .22 which is, as most of you are aware, tube fed.

I've been having a problem with the last 1 or 2 rounds in the tube magazine (i.e., the 10th &/or 11th round) not wanting to feed properly: Sometimes the bolt closes and, in so doing, will fail to feed the last 1 or 2 cartridges in the tube----other times the bolt will "stick the rear" and, in so doing, fail to feed the cartridge(s)----in either case, when this happens, the bolt has to be worked manually in order to feed the cartridge(s) into the chamber.

Is it worth trying to "stretch" the spring in the magazine tube in order to resolve this issue? Or could it be that something else is the cause?

I've tried different types of ammunition----it seems to happen most frequently with CCI Mini-Mags vs., for example, Federal Auto-Match---which is a bit surprising to me, as I usually think of Mini-Mags as a "gold standard" when it comes to .22s.

I've repeatedly cleaned the internals, including the cartridge guide area. Should I try adding oil to the various slide surfaces? Are there certain parts that I should be looking at/consider replacing/upgrading?

Thanks for your thoughts and help!

Thanks Rudolph31. An ancillary question----if the magazine tube spring is either too long or too short, can it be adjusted? Or just leave it as is?

jmorris.....sometimes when the "fail to feed" occurs, the bolt will close on an empty chamber, not picking up the cartridge-----yet at other times, I've had the bolt not close----it is held back to the rear and doesn't close on the chamber and, of course, since the bolt isn't closing, it is not picking-up or loading a cartridge. Again, this only happens on the last or last two rounds in the tubular magazine.

This happens on CCI mini-mags, somewhat less frequently on Federal Auto-Match-----thinking that this weekend I might try some CCI Standard Velocity rounds that I have and see if that makes a difference.