Re: I'm new, did i mess up my barrel?
Those streaks are copper deposits, your copper remover isnt doing a very good job at removing the copper. If you can find some, get a bottle of boretech eliminator, best i have found with KG-12 a close second. If you cant get any then try letting your hoppes copper remover sit in the barrel for 10 mins, dry patch, wet patch, let sit for 10 min, dry patch, wet patch. Repeat the process until patches come out the same color they went in and inspect the end of the barrel for copper streaks.
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom
Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/
My guess on W3P .308 230 Grain Bullet: G1 .740-.755