Chuck R.
Member
Not sure where this belongs...
I'm having an issue with heavy "copper-like" fouling on nitrided bolts in a 9" 300AAC build:
Picture is of a relatively new Tollcraft nitrided bolt. Contacted Toolcraft and they replaced it without an issue. Dropped in he replacement and withing 60rds the same buildup appeared. Sent them back the BCG this time. In the meanwhile I dropped in another spare nitrided BCG I bought from PSA, fired 60 rds and the same fouling reappeared. So that's 3 bolts, 2 of which were brand new.
The only possible cause I can think of is it's caused by lil Gun powder I've been using. Previously I was loading with H110 and had zero issues.
I've read some mention of copper fouling on bolt tails & Lil Gun on the Blackout board, but have yet to see a positive correlation. Any ideas???
Thanks,
Chuck
I'm having an issue with heavy "copper-like" fouling on nitrided bolts in a 9" 300AAC build:
Picture is of a relatively new Tollcraft nitrided bolt. Contacted Toolcraft and they replaced it without an issue. Dropped in he replacement and withing 60rds the same buildup appeared. Sent them back the BCG this time. In the meanwhile I dropped in another spare nitrided BCG I bought from PSA, fired 60 rds and the same fouling reappeared. So that's 3 bolts, 2 of which were brand new.
The only possible cause I can think of is it's caused by lil Gun powder I've been using. Previously I was loading with H110 and had zero issues.
I've read some mention of copper fouling on bolt tails & Lil Gun on the Blackout board, but have yet to see a positive correlation. Any ideas???
Thanks,
Chuck