Don't freak out about just resizing using WD40, you would actually have to soak the primers in it for a couple days to have any affect on them.
Stu Farish did a test on killing them by soaking them in different substances. Its a pretty good read and experiment.
Here it is in his own words.
OK, experiment underway. I have 5 cases each:
Untreated
Liquid wrench
WD-40
Rem Oil (spray)
Dillon Case Lube
Water
Alcohol
Kroil
Each batch of 5 cases were treated, then placed mouth up inside a plastic ammo box. The box is now closed, which should help reduce any evaporation.
Now I only need to decide how long to leave them beofre trying to shoot them. I'm thinking 24 hours. Several days may do it for most of these things, and based on what we've always been told I'd expect one day to be enough. Whatcha think?
Day 1, after 24 hours:
Untreated - normal discharge. Could see smoke exit the rifle muzzle.
Liquid wrench - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
WD-40 - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Rem Oil (spray) - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Dillon Case Lube - Very Weak. Primer ignited, but could not see smoke exit muzzle. Slight trace of smoke visible inside case.
Water - Very Weak. Primer ignited, but could not see smoke exit muzzle. Slight trace of smoke visible inside case.
Alcohol - Very Weak. Primer ignited, but could not see smoke exit muzzle. Slight trace of smoke visible inside case.
Kroil - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
In short, all primers ignited to some degree
Day 2, after 48 hours:
Untreated - normal discharge. Could see smoke exit the rifle muzzle.
Liquid wrench - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
WD-40 - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Rem Oil (spray) - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Dillon Case Lube - Very Weak. Primer ignited, but could not see smoke exit muzzle. Slight trace of smoke visible inside case.
Water - Strong. Primer ignited, but not as strong as normal. Smoke visible inside case.
Alcohol - Very Weak. Primer ignited, but could not see smoke exit muzzle. Slight trace of smoke visible inside case.
Kroil - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
All primers still ignited to some degree
Day 3 72 hours
Untreated - normal discharge. Could see smoke exit the rifle muzzle.
Liquid wrench - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
WD-40 - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Rem Oil (spray) - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Dillon Case Lube - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Water - Extreemly Weak, almost dead. Primer ignited, but I could not hear it and not enough discharge at the muzzle to move a bit of dead grass. VERY slight trace of smoke visible inside case.
Alcohol - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Kroil - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
All primers still ignited to some degree, though this time the one treated with water just barely did.
Day 4, after 96 hours:
Untreated - normal discharge. Could see smoke exit the rifle muzzle.
Liquid wrench - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
WD-40 - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Rem Oil (spray) - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Dillon Case Lube - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Water - Dead. I could not hear it. No trace of smoke visible inside case.
Alcohol - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Kroil - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
All primers still ignited to some degree, except the one treated with water.
Water is so far proving to be the most effective agent in killing primers, but it still took 3 days, 4 to completely deactivate.
Day 5 (last day), after 120 hours:
Untreated - normal discharge. Could see smoke exit the rifle muzzle.
Liquid wrench - Strong. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
WD-40 - Strong. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Rem Oil (spray) - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Dillon Case Lube - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Water - Dead. I could not hear it. No trace of smoke visible inside case.
Alcohol - Very weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
Kroil - Weak. Primer ignited, but could not see smoke exit muzzle. Smoke visible inside case.
All primers still ignited to some degree, except the one treated with water.
Water wins, for WLR primers, but it still took 3 days, 4 to completely deactivate.
I'll pick a differnt brand primer for the next test.