ORIGINAL: alsaqr
I use Windex with vinegar mixed 50/50 with water.I putit in a spray bottle and just spray it on the breech plug. Most of the crud on the breech plug is almost instantly washed away. Use a toothbrush on the threads to finish the job. I run a nipple pick through the flash hole and use pipe cleaners in the hole under the recess for the 209 primer in the CVA. Elapsed timetwo minutes. This stuff works fast.
Being curious, I tried your Windex Multi-Task with vinegaron a dirty plug with anti-seize residue. Even tried it full strength. Then tried full strength Simple Green -- then tried full strength Pine-Sol/Murphys.
If I didn't have a rag or toothbrush nearby,a littleof the exterior residue was still remaining - despite all those cleaners I tried. The best alternative I found was Brake Cleaner/Gummout spray. But I refuse to stink-up my laundry room & basementwith that stuff. I only useabrasive, toxic chemicals outdoors - only squirting the inside of the breechplug with the nozzle extention- then blow it out with my garage air compressor. The whole exterior of my plugs gets cleaned with a toothbrush first indoors- otherwise plenty of greae/residue remains trying any singular home-cleaner spray. I won't waste the Gummoutspray whilecleaning the exterior. One can of that stuff lasts mearound one-hundred plugs - if I only shoot the plug's interior with it.