JohnM - if you have nothing constructive to say please refrain from posting. Thanks
This photo is the current set-up. The two pencil lines on the barrel (silver color) is exactly where the .30 brush is. Above the rifle is a never used .30 hoppes boresnake that I dissected to know exactly what it was comprised of, I originally thought it had a nylon core but it has a bronze brush with what appears to be a steel core...which is why I could not burn any further.
I have read in other threads the manufacturer states adding any solvents swells the material and aggravates the situation. I don't have access to MEK in any event which has appeared to work for others.
Gunsmiths in this country, Luxembourg are not reliable and on both occasions I have brought my firearms to have something fixed they never were which is why I would like to try resolve this on my own, if at all possible.
I cut the boresnake flush to the chamber to disassemble the rifle ( I had no real leverage from the ejection port), I have attached a plumber´s auger into the threaded section of the snake that resides within the chamber area. I have pulled like crazy but this had gone nowhere. This is option number one but I have no means to generate leverage once I have put the barrel in a vice.
Option 2 was to burn out the snake from the chamber all the way to the brush...and use a rod....my fear being the brush will bow/bend and not go straight out, this could create an even larger obstruction.
Option 3 was to use the 4 mm brass sleeve I originally used to protect the barrel while burning to attempt to collapse the bronze bristles, I do not believe this is feasible.
Option 4 ....what I originally asked and last on my list of preferences is to burn all the material out from the chamber to the brush and start with only a case and primer. I do not believe a primer alone would affect the barrel integrity but that the gases from a primer plus 1 grain of powder etc. would dislodge it.
I will take it to a gunsmith if nobody can suggest viable alternatives. I am not saying my options are worthwhile, just wanting a list of possibilities that leave as many options open as possible.