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June 25, 2020, 08:07 PM | #1 |
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J-b non-embedding bore cleaning compound ?
Anyone used this and thoughts? I can't seem to find many new videos or articles on it. I used it, per the instructions tonight and did 2 rounds and it kept coming out black, even at the end of the cleaning process. I'm trying to figure out at what point I am no longer cleaning but removing metal...
1 cycle of bore tech eliminator (first 3 rows) 1 cycle JB (10 passes) followed by CLP Oil and dry patches (4th row) 1 Cycle of bore tech eliminator (next 3 rows) 1 cycle bore tech carbon remover (next 3 rows) 1 cycle JB (10 passes) followed by CLP oil and dry patches
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June 26, 2020, 01:49 AM | #2 |
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What exactly are you trying to accomplish? It's not like these witches brews are going to suddenly make your rifle shoot accurately. Remove the carbon, remove the copper, then what? The only thing left is wearing the bore.
Oh, just BTW, you will never get a clean patch out of a rifle once it's been fired.
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June 26, 2020, 07:28 AM | #3 | |
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They're all fired a few times with proof loads. Except for the ones I've bought, obviously. They don't dirty patches after I've cleaned them before shooting them. Last edited by Bart B.; June 26, 2020 at 07:34 AM. |
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June 26, 2020, 07:44 AM | #4 | |
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Quote:
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I don't believe in "range fodder" that is why I reload. |
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June 26, 2020, 08:09 AM | #5 |
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More rifle barrels have been ruined by over cleaning than under cleaning. You have to know when to stop.
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June 26, 2020, 10:04 AM | #6 |
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Every shot fired erodes the throat making it rough. Burning powder at high pressures temperatures acts like a cutting torch. Every couple to few dozen shots advances the throat .001" further down the barrel.
I've never "broken in" a barrel. |
June 26, 2020, 11:45 AM | #7 | |
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Quote:
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June 26, 2020, 02:21 PM | #8 |
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I use it on occasion--but very judiciously--typically when I can visibly see significant fouling in the lands and grooves. I don't follow any procedure--I go by feel and degree of "junk" that comes out with each successive patch. I look more for "tons of junk" coming out as opposed to "anything discoloring the patch at all"--in other words I don't keep passing it through the bore as long as any discoloration at all comes out.
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June 26, 2020, 10:11 PM | #9 |
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After researching some more I definitely agree with you, it did not need the last 10 passes. I think the first 10 did some good, but the last 10 were not needed. Hopefully no real harm done.
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June 26, 2020, 11:00 PM | #10 |
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The directions say use sparingly. Only time I use JB is in my revolvers after shooting cast bullets. Last year, I got some Shooters Lube products and they're the best I've used in 50 years of cleaning guns.
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June 26, 2020, 11:53 PM | #11 |
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JB is a very light abrasive, you didn't hurt your barrel. Put some on a patch and scrub an old barrel on the outside or some metal that is similiar to barrel steel where it's easily seen, it takes alot scrubbing to do anything.
I believe JB uses animal fat as the suspension, scrub the barrel with a nylon brush with Dawn dish soap, it will be squeaky clean in a couple of minutes, make sure you recoat the inside of the barrel with a penetrating lubricant afterwords. |
June 27, 2020, 05:37 AM | #12 | |
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My experience with JB is limited to mostly to 22LR rifles and old military rifles. I use it the first time on all new-to me used 22LRs and old military rifles to clean up the throat just ahead of the chamber. Based on a bore scope, when I can see that ring of fouling. Once that's gone I don't use it for routine cleanings at all. Guess I'm saying that I don't use JB unless I see a problem.
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June 27, 2020, 01:09 PM | #13 | |
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Quote:
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June 28, 2020, 01:16 AM | #14 |
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JB
I've used JB on a Rem 700 ADL/.270 that is absolutely the worst copper fouler I've ever seen. I mean, I have used a lot of JB on it initially in the first year of so I owned it, maybe a hundred passes over the course of time. Now, some twenty years later, the rifle does not foul quite as much, and is as accurate as ever.
I doubt you hurt your bore any. |
June 28, 2020, 07:44 AM | #15 |
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Whenever I get a rough throat in a varmint rifle a light polish with JB brings the pressures back own and keeps them from fouling to quickly, I can feel when it polished with a tight fitting dry patch. Usually about 20 strokes is sufficient.
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June 28, 2020, 10:15 AM | #16 |
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J-B bore cleaner paste won't harm your barrel. Brownell guarantees that.
For several years, Sierra Bullets used a bore cleaner in their test barrels made with very fine dental pumice mixed with Hoppe's No. 9 bore solvent. Nicknamed "Martin's Mustard" because it looked and poured like yellow table mustard and was made by their ballistics manager Martin Hull. I liked it better than J-B and it was cheaper. |
June 28, 2020, 12:18 PM | #17 |
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June 29, 2020, 04:48 PM | #18 |
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so my bore scope came in. no damage done. There was still some copper fouling though. Did another pass with my copper remover and am calling it good.
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