Thread: Bore Rust?

certainly looks like rust and a bad case of corrosion - water getting in ?? or stored in really damp environment - not cleaned after firing ?? personally I think your cleaning regime has failed that barrel - there is a difference between protection and overcleaning - always remember oils coat - solvents pentetrate -- its entirely possible to put a coat of oil over rust and metallic fouling -there's nothing wrong with putting a kind solvent such as hoppes no9 (petroleum based) thru barrel on rag after taking rifle out for day - remove next day and replace with something like Remington oil - but thats simple preventative - dont take to barrell with a steel brush ( only ever bronze ) and harsh solvent ( ammonia based ) that's were the conflicting cleaning info comes from - prevention is better than cure -if I take my rifle out and dont fire it I put a thin coat of breakfree thru barrell that night to get rid of any moisture then dry rag next day - once home dry rag and rem oil -if I have fired it then hoppes no 9 -rarely do I use a bronze brush and even then sparingly - but your barrel needs some serious attention -remove stock and give barrel a good coating inside of hoppes no 9 or other metallic solvent - leave overnight -dry rag - then bronze brush ( likely 10 -12 strokes)and solvent -dry rags - more solvent overnight -dry rag - now what does that rag look like - brown thats rust coming out -green thats mettalic fouling coming out - keep doing the process until dry rags come out same colour as solvent -you tube has some great videos on barrel care - yours may even need more harsh methods such as brushing out with a soft abbrasive like ajax -