[kimber_45]

My barrel has what looks like "burn marks " on the inside. I only shoot FMJ, I used, Hoppes 9, Mpro 7, (not at the same time) a brush and good old fashioned elbow grease. The bore is clean except for those burn marks. A guy told me to use "Kleen Bore" Lead Away Cloth, cut into small 1/2 x 1/2 patches and run thru to remove the build up.
Are these marks lead? If so how when I only use FMJ. If it isn't lead WHAT IS IT? and why won't Mpro7 or Hoppes 9 remove it? Thanks In Advance, I have learned so much here re: The 1911..... and I started looking for my 2nd one yesterday (I guess I am hooked!!)

 

[ArmySon]

Moving to the Maintenance & Troubleshooting Forum.


PS

If you get the Lead Away Cloth, make sure you don't get it on any bluing!

 

[kimber_45]

Thanks for the tip!

 

[Freespool]

Those "burn marks" are carbon buildup. The lead-away cloth does a good job of removing this from stainless steel. I use it on stainless revolvers to clean the carbon from the cylinder mouths. Lead-away cloth also does a good job of removing blueing.

 

[BADSBSNF81]

The Lead Away cloth works as advertised. It will remove a blue finish so be careful.

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If it bleeds, you can kill it.

 

[Black Pearl 45]

JB bore paste should work too, might be safer to use than the cloth

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PRK -the crap may start here but does NOT End here --BP45