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Posted: 6/27/2009 5:19:46 PM EDT
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Fellas, I loaded up some lead bullets and I am now having an awful leading problem in my H&K USP. How in the world do ya clean and rid the barrel of the lead? I tried shooting some plated and FMJ rounds through her but that didn't do much. Any help pointing toward a solution or cleaner would be great. Thanks in advance.
Mike |
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I don't know anything about H&K USPs but I have had leading problems in the past. I used a tool called a LEWIS LEAD REMOVER. Worked very well when I used it.
JM |
| so simple you won't believe it ................get into the cupboard and mix together white vinegar and hydrogen peroxide 50/50............with your barrel in hand put your finger over the end and fill it with the mix..........after it gets done doing it's thing (maybe five minutes ) just dump the lead right down the sink and clean as usual . Try it , you'll like it . The Lee liquid Alox (tumble lube) is very good for not leading up your barrels in the future. Don't get the bright idea to let a blued barrel or cylinder soak in a bowl of the mixture.....it will discolor the blueing if left too long . |
| I don't think it is a good idea to be dumping lead acetate down the sink, cause once the lead, vinegar and peroxide mix together to form the blue solution that is what you have. MSDS there is a way to reduce the toxicity of the chemical as the suppressor guys were using it to clean the 22 cal silencers but I forget now as I can't use it on my aluminum can. |
| You shouldn't be shooting lead in a USP unless you have an aftermarket barrel. The polygonal rifling will lead extremely quickly and can lead to over pressure issues. If you want to shoot lead in your USP, you will need to replace the barrel, otherwise stick to jacketed bullets. |
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Quoted:
You shouldn't be shooting lead in a USP unless you have an aftermarket barrel. The polygonal rifling will lead extremely quickly and can lead to over pressure issues. If you want to shoot lead in your USP, you will need to replace the barrel, otherwise stick to jacketed bullets. I'm surprised this wasn't pointed out sooner! |
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Quoted: Go to the grocery store and get some choreboy (copper) scrubbing pads. Using an undersized bore brush as a base, wrap a layer of choreboy scrubbing pad material over the bore brush. Dip this in your favorite solvent and go to town. Ace Hardware sells bronze wool, like steel wool except it's bronze. I use it for cleaning 12 gauge choke tubes, I dip it in solvent, stuff it inside the choke tube and use my pinky to remove the build up carbon I always like threads with pictures so here it is  |
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Quoted:
Quoted:
You shouldn't be shooting lead in a USP unless you have an aftermarket barrel. The polygonal rifling will lead extremely quickly and can lead to over pressure issues. If you want to shoot lead in your USP, you will need to replace the barrel, otherwise stick to jacketed bullets. I'm surprised this wasn't pointed out sooner! No doubt. HK pistols have polygonal rifling type barrels. Polygonal rifling and bare lead do not get along. You will always experience severe leading shooting those kind of bullets in that kind of barrel. The home remedy mentioned above will do the trick. For leading in barrels, I use Gunscrubber foaming bore cleaner. Works well. |
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I had some lead in my 1911 barrel. I mixed 50/50 vinegar and hydrogen peroxide, removed the barrel, plugged it, and poured that mixture in. Let it set about 30 seconds, emptied it, cleaned like normal. Removed almost all the lead.
ETA: I see you tried the peroxide vinegar solution. Works amazingly well. |
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This is what I use in my Glocks, I got my Glocks and fired lead through them before I got the internet so my wheel weight castings and LaserCast are fine through the factory barrels. Also remember to use only quality factory manufactured ammunition.
I fire some lead, at about 75-125 rounds I take out the barrel squirt it and the brush with GunScrubber and run the brush through 10-20 time until clean and fire some more very quick and simple, about 3 minutes range time wasted.....I used to just send a few jacketed through until I read of all hoopla. 
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