Sefuller5741
Member
- Joined
- Jan 30, 2021
- Messages
- 43
I have recently realized I am getting quite a bit of carbon buildup in the barrel of my Walther PDP, shooting Hi-Tek coated bullets over a few different powders. The buildup can occur with as few as 10-20 rounds, and is extremely difficult to remove. I am buying bullets from two different vendors and have the same issue with both. I have tried bullets sized up to 358 (barrel slugs at 355) which seemed to create less buildup, but it was a small sampling. The buildup generally occurs through the entire length of the barrel, although it seemed with the 358 sized bullets the buildup was concentrated more toward the muzzle as opposed to the entire length, but again it was a pretty small sample to be conclusive. I have tried almost every conceivable means to remove the carbon, and it can take hours to get it all out - and I am not 100% sure I have ever removed all of it. Lapping compound is about the only thing that will remove the majority of it. I have tried overnight soaks in Kroil, Slip 2000, and even CLR, which btw removes all the finish from the barrel. I have used brushes and patches with 0000 steel wool and/or copper chore boys wrapped around them, neither of which have any affect on the carbon. I can scrape it off with a pick, but it is a tedious prospect and nearly impossible to get all of it. I have tried N320, HP-38 and Clays for powder, and I generally load between starting load and mid-load. I have a PPQ with an identical barrel which carbons up similarly. I have been crimping only to remove any remaining bell, and have gotten the suggestion to try a tighter crimp, which I have not had an opportunity to do yet. My enthusiasm for further testing is greatly diminished by the amount of time it takes to get the barrel clean. Looking for any suggestions - what works to remove carbon, and what other steps may eliminate the carbon buildup I am getting?
Thanks,
Scott
Thanks,
Scott