After you clean your barrel and think you have it absolutely clean you may be surprised what is left behind. Copper fouling is easy to remove compared to carbon. When carbon is heated and under enough pressure you get diamonds.
Carbon fouling in your bore is not as hard as a diamond but it is much harder than the copper fouling after a time especially if you are running max pressure loads and heating the barrel up real hot. One thing I use to cut thru and get the carbon out is Simichrome. Same stuff you polish those high dollar gold plated 24" rims with. A little bit goes a long way and you might just be surprised at the results especially bringing back the accuracy you once had.
The blue patches are Sweets 7.62 to wet the bore and then I ran thru a few patches with Simichrome on it to start cutting thru the carbon. This is from a Savage .308 5R barrel that has only had about 200 rounds thru it. I'm soaking the barrel again in Sweets and will run another dozen or so dry patches thru until no more residue and then a light oiling. I like Rem Oil for my barrels.
Carbon fouling in your bore is not as hard as a diamond but it is much harder than the copper fouling after a time especially if you are running max pressure loads and heating the barrel up real hot. One thing I use to cut thru and get the carbon out is Simichrome. Same stuff you polish those high dollar gold plated 24" rims with. A little bit goes a long way and you might just be surprised at the results especially bringing back the accuracy you once had.
The blue patches are Sweets 7.62 to wet the bore and then I ran thru a few patches with Simichrome on it to start cutting thru the carbon. This is from a Savage .308 5R barrel that has only had about 200 rounds thru it. I'm soaking the barrel again in Sweets and will run another dozen or so dry patches thru until no more residue and then a light oiling. I like Rem Oil for my barrels.
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