As I posted previously, I picked out 10 rounds each of .22LR Winchester Wildcat (CCI Headstamp), an unusual headstamp from ammo I've had for years on my pistol belt, Super-X, and CCI Mini-Mags, and pulled the bullets. I put 1 each of the empty cases in small containers of Acetone (nail polish remover) Alcohol, Break-Free CLP, Eezox, Gasoline, Kroil, Sea-Foam, Strike-Hold, Vinegar (white), and Water. I soaked them all for 1 week, then emptied the containers and cases and blew them out with compressed air as much as possible. I made sure all the cases were blown as dry as I could get them when I put them back in the containers. Then I let them air dry for another week. This morning I fired, or attempted to fire, each case in my old Hi-Standard Sentinel (Yes, I'm that old.) If the primer fired, I recorded it. If not, I turned the case 90 degrees and tried again, until I had made four attempts.
Here are the results:
Acetone: All 4 cases fired the first time. Noted it was difficult to load the cases, as apparently the acetone dried leaving a film on the cases.
Alcohol: All 4 cases fired the first time
Break-Free CLP None of the cases fired.
Eezox: None of the cases fired.
Gasoline: All 4 cases fired the first time.
Kroil: The CCI case sort-of fired the first time. Sounded more like snapping on an empty cylinder, rather than the dull thud of a misfire. The second CCI-primed (Wildcat) case kind-of snapped on the second strike, and I observed a bit of smoke afterwards. The Super-X and the other case did not ignite at all.
Sea-Foam: None of the cases fired.
Strike-Hold: None of the cases fired.
Vinegar: None of the cases fired.
Water: All 4 cases fired the first time.
Both the Break-Free and Strike-Hold containers had some solvent in them that I was unable to completely get rid of, so I can't swear the inside of the cases were totally dry. If I were going to chemically deactivate .22 RF cases, I would use Sea-Foam or Vinegar.
Hope this is of interest.