Brake cleaner
I use brake cleaner on old all metal fishing reels. Works good. I know a guy that
used it on a Quatom reel made out of some kind of plastic. Turned it into sheep
snot. Also have worked on lots of 1100 Rems and 22 autos that have been
"cleaned" with WD40. This is usually done without taking gun apart, spray and
wipe jobs. WD dissolves residue, drains to back off action and into trigger group,
then hardens into a lump. Then you got problems. This is what causes 99% of
failure to fire in the 1100 Rem.