Cats, Guns, and more. What’s not to love?
Another overnight soak, a bit more brushing and swabbing. Much cleaner.
However . . . I think all the lines ‘n stuff are machining marks. They run the length of the barrel each side of a land. The carbon sure has a place to latch onto.
But here’s an interesting pic. Inside the gas port you can see the adjustment mechanism.
So, earlier today I’m looking at these pics and Mrs. Red says, “Are those from your colonoscopy this morning?”
So, the AR10 has had two overnight soaks, one in Wipe-Out and one in Hoppes’ version of the same thing – I’ll have to look later for the name. But I’m still getting views of carbon streaks between the lands:
I got out the CLP, brush and patches and this is what I got on the first pass after scrubbing:
Back to the scope. Better, but still carbon remaining:
Tried again, but still got filthy black fouling. Back to a Wipeout soak overnight. That fouling is really baked in. I assume that the barrel is getting hotter with a faster rate of fire than a bolt action. Probably means more frequent cleaning.
Speaking of cleaning, I had picked up some .308 range brass likely left over from a winter shoot and under the snow till I got there last week. A pic showed how nasty it was:
I let it run in the tumbler another time overnight. The results were better:
It’s all PMC, and when I ran it through my go/no go gauge, it was all fine. None needed trimming, so I suspect it is not once-fired brass. I’ll load up a few and see how it shoots. At least it’s cleaner than the rifle.
Since the scope was still out and I’d never looked inside the AR-10 barrel:
Clearly some carbon fouling down next to the lands and a bit of copper on them.
Ramps to the lands are dirty but not much in the way of erosion.
Lots of carbon at the mouth and inside the chamber. Not surprising with a direct impingement gas system.
Gas port is clear, maybe a little wear or buildup on the left.
Time for some Wipe-Out!
Do you know your point of impact shift from cold barrel to warm to suppressed?
Apropos of nothing, this is a common problem and a nifty solution. Does your brass get beat up hitting the deflector when it ejects?
Deflector Brake by Jack Keil. Not only does it cushion the impact, the brass drops in a neat pile a few feet away.
Just make sure you position it far enough back so that it does not interfere with the dust cover. Live and learn.
They are now on all of my AR platforms. Assuming that I have more than one.
KatNap Fever! 