Ok I know this has been done to death but a mate got me a lidl ultrasonic to play with. I thought at twenty quid it must be tat but after trying it today it impressed the hell out of me. Warm water. Little spot of fairy liquid and a squirt of lemon juice. Rinse brass after it in warm water. Very impressive result. No discolouring and shiney brass with even the primer hole clean.
Wonderment over now lol.
Wonderment over now lol.