I suggest that you consider getting rid of the pistol before you lose a hand or an eye.
Well, you're off to an excellent start! Makin' friends and stuff! Good jorb.
I suggest that you consider getting rid of the pistol before you lose a hand or an eye.
What was the gun and what was the ammo? That sounds like typical performance for Remington Thunderbolts in my experience.
.22LR should have very little lead fouling whether or not you are using plated bullets. There is something wrong with either the barrel or the ammunition if you are getting more fouling than can be removed with a few passes of a bronze brush.
Before using any chemical that will possibly attack steel use a worn brush wrapped with bronze wool or copper pot scrubber strands. These are softer than the barrel metal and won't do any damage.
Make sure that the pot scrubber is really copper. There's some cheap ones that look copper but are plated steel.
Years ago there was a product called the Lewis Lead Remover; don't know if it's still available or not.
Great product for removing lead.
It consisted of a cleaning rod, a hard rubber jag, and copper mesh screens.
You simply put the rod through the barrel, attached to jag with the mesh screen on it , and pulled it through the barrel a couple of times. The copper mesh scrapped off the lead without damaging the barrel.
If it's not still available, it shouldn't be too difficult to make up something similar.