How can I eliminate powder bits in a suppressor with my 6.5CR load

EchoDeltaSierra

Slightly above average
Full Member
Minuteman
Jun 1, 2013
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351
Minnesota
I’m wondering if the SH hive-mind can help me think through something. I have a nice load worked up for my recently installed 21” Criterion barrel. I run suppressed most of the time for the sake of personal preference and hearing preservation. The new barrel has allowed me to get up to 2794fps with no adverse pressure signs on my brass using 140 ELDs over 43.9gr of H4350. I also have a nice 2625fps load using the same 140 pills over 41.7gr of H4350.

That said, when I pull my can off after shooting a string of the 2794fps loads, my can always has black crusty bits that dump out of the end. There hasn’t appeared to be any unburnt powder, but all previous lighter loads did not do this.

Question; could I use a faster powder (considering SUPERFORMANCE) and get a more complete burn to eliminate the crusty bits? Just curious if it’s worth testing.

Thanks all!
 
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Are you sure it's powder and not carbon chucks?

I've had chucks of carbon come out that you could grab and use it like driveway chalk.

I cleaned two of my suppressors after that and got nearly 2 ounces out of one and about 1.5 ounces after the other. :(
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Are you sure it's powder and not carbon chucks?

There’s a thought and I supposed it could be. I recently ran my can through a couple of sonic cleaner cycles. Maybe it’s some of the remaining carbon bits knocking loose and not powder residue (or whatever the heck the proper technical term is for cristy bits).
 
Try cleaning it with a 50/50 mix of CLR and water (let it soak for about 10 mins or so). That works way better than a sonic cleaner IME. It just dissolves the carbon, with the larger chunks falling out. Your baffles need to be steel or Ti though. Aluminum is no bueno with this mixture.
 
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