m700 Posted September 25, 2020 Share Posted September 25, 2020 I cleaned my 320 yesterday with a PMM ultra comp for the first time since installing the comp. It was about 1000 rounds in and the carbon on the comp looks impossible to get off, so i skipped it. How do I clean this thing. I was thinking perhaps hanging it over the ultrasonic and dipping just hte comp in. My concern with this is its an optic slide so i dont want to remove the optic and have to rezero(it was dead nuts on first install though). I also am not sure what ultrasonic will do with rockset on threads. how should I go about this. Or should I just clean the barrel and leave the comp filty and put a new one on in a year or so Link to comment Share on other sites More sharing options...
Sarge Posted September 25, 2020 Share Posted September 25, 2020 glass bead blaster will make a comp look like new in about 5 minutes. Link to comment Share on other sites More sharing options...
m700 Posted September 25, 2020 Author Share Posted September 25, 2020 these PMM's are anodized aluminum. Would they hold up to glassbeading? Link to comment Share on other sites More sharing options...
George16 Posted September 25, 2020 Share Posted September 25, 2020 Try soaking in kroil. Link to comment Share on other sites More sharing options...
m700 Posted September 25, 2020 Author Share Posted September 25, 2020 Will try the kroil was originally thinking of butch's but thought maybe too agressive Link to comment Share on other sites More sharing options...
Sarge Posted September 25, 2020 Share Posted September 25, 2020 2 hours ago, m700 said: these PMM's are anodized aluminum. Would they hold up to glassbeading? I am not sure but I doubt it. Link to comment Share on other sites More sharing options...
kuletchi1 Posted September 25, 2020 Share Posted September 25, 2020 File the corners of screwdriver and sharpen it up. That's how i do it. Also might want to start using complete jacketed bullets to cut out most of the carbon Sent from my SM-N975U using Tapatalk Link to comment Share on other sites More sharing options...
Dwbsig Posted September 25, 2020 Share Posted September 25, 2020 No don’t bead blast anodized aluminum it will take the color off. Use to work in a shop around that type of stuff. Link to comment Share on other sites More sharing options...
ilovevtac Posted September 25, 2020 Share Posted September 25, 2020 I have had good luck with CLR. Link to comment Share on other sites More sharing options...
38super Posted September 26, 2020 Share Posted September 26, 2020 CLR has phosphoric acid, good bye anodizing Link to comment Share on other sites More sharing options...
MemphisMechanic Posted September 26, 2020 Share Posted September 26, 2020 (edited) @m700 what bullet and powder are you using? You now see why many of us with compensated PCCs or Open guns will run a TMJ, plated or JHP bullet. No coated bullets, and also something which leaves no lead exposed at the base of the bullet, so not your typical FMJ. Soak the comp in kroil for a day or two before trying anything else. It can’t hurt and it might just do the trick. Edited September 26, 2020 by MemphisMechanic Link to comment Share on other sites More sharing options...
m700 Posted September 26, 2020 Author Share Posted September 26, 2020 Up to now 115s plated. I had picked up 6000 or so blues but I got them before the comp. I suppose I should save the rest of what I have in plated for this one and hide these blues elsewhere. I got kroil at work so I'll give it a try Sent from my Pixel 2 XL using Tapatalk Link to comment Share on other sites More sharing options...
rishii Posted September 26, 2020 Share Posted September 26, 2020 I’ve been using kroil for a while now, I swab my comp after I shoot and let it sit till the next time, it will loosen the crud that’ll get blown out the next time I shoot. Link to comment Share on other sites More sharing options...
m700 Posted September 27, 2020 Author Share Posted September 27, 2020 I’ve been using kroil for a while now, I swab my comp after I shoot and let it sit till the next time, it will loosen the crud that’ll get blown out the next time I shoot.I like the sound of this. I used to be extreme with cleaning. 2 kids now makes having sorry find not as big a dealSent from my Pixel 2 XL using Tapatalk Link to comment Share on other sites More sharing options...
echotango Posted September 30, 2020 Share Posted September 30, 2020 On 9/25/2020 at 8:44 AM, m700 said: these PMM's are anodized aluminum. Would they hold up to glassbeading? The anodizing color will come off. Link to comment Share on other sites More sharing options...
1sickPuppy Posted October 9, 2020 Share Posted October 9, 2020 Try soaking in lemishine and water. Link to comment Share on other sites More sharing options...
zzt Posted October 13, 2020 Share Posted October 13, 2020 Take the barrel out and lay it down horizontally. Put one drop of CorrosionX in each port and wait. It will eventually soften and you can scrape it out as a soft black goo. Link to comment Share on other sites More sharing options...
NOSHMJ Posted October 16, 2020 Share Posted October 16, 2020 Try 50/50 Apple cider vinegar and peroxide. Let it soak for about an hr or two. Will wipe right out with a Qtip. Rinse with water. Just have good ventilation. Link to comment Share on other sites More sharing options...
GOF Posted October 25, 2020 Share Posted October 25, 2020 On 10/13/2020 at 11:57 AM, zzt said: Take the barrel out and lay it down horizontally. Put one drop of CorrosionX in each port and wait. It will eventually soften and you can scrape it out as a soft black goo. Thanks for the tip. I had a comp on a .22 rifle that had fired a few hundred lead loads, with leading in the front ports, and crud in the rest of the comp. Out of Kroil. Took a small pill bottle, put the comp in it, filled it with Corrosion X and let it sit two days. After that a small center punch easily knocked the lead out of the holes, and a 40 cal brush from the rear took out everything else. Cor X worked, and it will not harm metal in any way. I have used it for many years as a lube for .22 actions because it doesn't hold fouling, and for trigger lube on all pistols. It's the only thing I will lube a revolver with. Kroil might be a bit better on comp cleaning, but Cor X worked. Link to comment Share on other sites More sharing options...
MuayThaiJJ Posted November 14, 2020 Share Posted November 14, 2020 Soak in Ballistol, scrub Link to comment Share on other sites More sharing options...
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