Expect a fouling trap at the breechplug face.
I don’t understand the term “fouling trap.” This, on a new Getz barrel? Thank you!
Fouling trap. Someplace in the breech of the barrel that has gaps and crevices that collect fouling, moisture, oil etc. Note the photos. Note how far down the threads the fouling has penetrated. This not as bad as it would have been had the rifle been shot with a virulently corrosive “substitute”. If well oiled real BP fouling will not usually rust much. He may have cleaned it with something like Hoppes BP solvent. Never asked. This rifle had not been shot much. The only reason I let it in the shop at all was that I got to hunt on the owners ranch.
Not gonna bother mentioning whose name is on it since it’s endemic in the “industry”. Factory mades and “custom” barrel makers as well. The one pictured was scrapped and the rifle rebarreled with a properly breeched GM due to excessively deep dovertails in the waist. The last one I had in the shop, a percussion “patent” breech took me about 1 1/2 hours of lathe work to fix.
In one photo one you can actually see down into the threads if you look in the grooves. This was after I cleaned it and reinstalled the breech for the photos. The rebate on the face of the breech actually enters into the bore. Everyone I know who bothers to check has found something similar. Usually the tapped hole is deeper than the breech plug threads. Making a gap.
When the fouling is not removed and is oiled and then the process repeated, shoot, clean, oil. The heat and pressure will turn the petroleum soaked fouling into something like black concrete.
