Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 1, 2021 12:18:20 GMT -5
Shooting commercial Hi-Tek-coated bullets ends up putting deposits in the barrel. They’re a bear to get out. None of the solvents I use touch them so I use a brass brush wrapped with either Chore Boy or Big 45 Frontier Metal Cleaner (https://www.big45metalcleaner.com/). Solvents that don't work are:
Breakthrough Clean Technologies Break Free CLP M-Pro 7 Bore Gel Ballistol Bore Tech Eliminator Montana Extreme Bore Solvent Acetone Denatured Alcohol Mineral Spirits
Is there a solvent that works on Hi-Tek?
If you have any other observations or advice, please comment. Maybe loads are too fast, or slow, or bullets don’t fit right. One forum cautioned against using powders that burn hot. ?? I have powder burn rate charts but no powder burn temp charts. Does fast=hot?
Thanks!
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Post by wheelguns on Sept 1, 2021 17:38:12 GMT -5
My thoughts are that your bullets are a little small, and the deposits are hard to remove because they are mixed with lead. JMHO.
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Post by Encore64 on Sept 1, 2021 17:45:36 GMT -5
I'd like some details on the gun too.
I usually shoot them over Unique or 2400 without problems.
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Post by leadhound on Sept 1, 2021 18:00:33 GMT -5
Any previous problems with cast and lubed? Where is it depositing material?
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Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 1, 2021 18:09:08 GMT -5
Thanks, guys. I appreciate your thoughts. Lately, I've shot two Old Model Blackhawks in 41 Mag a lot. Some were 215 grain SWC bullets over 8 grains of Unique. Pretty accurate, at least for the 50 fired.
Interesting you should suggest too small bullets, wheelguns. The commercial bullets I use typically come sized to 0.411 but the loaded rounds don't chamber easily. They won't fit in an L.E. Wilson case gauge either. So I pushed some through a Lee 0.410 sizer. They chamber easy (case gauge and gun) but maybe this is the issue. Next experiment will be trying to get the 411s to chamber. Could chambers be too tight?
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Post by Encore64 on Sept 1, 2021 18:30:28 GMT -5
If you're sizing those coated bullets down, that may be the culprit.
For my tight chambered revolvers I usually add a light taper crimp to squeeze the brass snug against the bullet.
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Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 1, 2021 18:43:57 GMT -5
Thanks, encore. I appreciate your experience. I'll look for a 41 Mag taper crimp die.
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Post by paul105 on Sept 1, 2021 20:26:35 GMT -5
You could also try deep seating the .411s and crimp over the front drive band. You may have to reduce you powder charge a bit and work back up.
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Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 1, 2021 20:39:17 GMT -5
Good idea, Paul. I've had success with 45 ACPs that wouldn't seat in a revolver cylinder by deep seating. I'll give it a try. Thanks!
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JM
.375 Atomic
Posts: 2,416
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Post by JM on Sept 1, 2021 22:03:47 GMT -5
I've been surprised with this stuff: www.boretech.com/products/rimfire-blendBought it for .22LR but it works well on removing centerfire ball ammo residue also. EDIT: Looks like you tried a Bore-Tech product already.
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Post by needsmostuff on Sept 1, 2021 22:37:49 GMT -5
Is the stuff like lead where you could run some jacketed bullets and blow some of it out ?
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Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 2, 2021 7:23:06 GMT -5
Thanks for your recommendation, JM. The Bore Tech Eliminator product listed above doesn't seem to affect whatever this deposit is. Maybe the rimfire solvent is a different formulation. Bore Tech does make a product called Moly Magic. www.boretech.com/products/btcm-15004It's supposed to clean "molybdenum disulfide." Is Hi-Tek molybdenum disulfide? I've thought some jacketed bullets might help, needsmostuff. I'm hesitant to use this since it seems some shooters think you just iron the lead or whatever deposit into the barrel. When removing lead with a Chore Boy, it comes out in dark or silvery pieces. I don't see any of this deposit coming out. I see it with a bore light from the breach or muzzle. Thanks for your post! P.S. I believe Hi-Tek is a product from Australia. I'll try to track them down and ask if there's an appropriate bore cleaning solvent. Meanwhile, need to concentrate on loading right-sized bullets at appropriate velocities for whatever BHN. It seems to matter!
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Post by bigmuddy on Sept 2, 2021 9:59:25 GMT -5
If your chamber throats are “tight” they may be smaller than your bore, a fairly common issue on Rugers. If so, the bullet will be sized to that smaller diameter allowing gas to blow by in the bore. Deep seating won’t fix that issue. This type of leading can be pretty stubborn to remove.
Any deposits in my bores with the Hi Tek coated bullets come out with a few passes from the brush.
I suggest checking the cylinder throats. A quick round trip for that cylinder to Fermin might be in order.
Dan
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Ramar
.30 Stingray
Posts: 397
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Post by Ramar on Sept 2, 2021 13:42:43 GMT -5
I believe you're onto something, Dan. Tried dropping 410 and 411 bullets into each chamber. Of course, the 411s won't fall through but even the 410s don't fall through and how far they go in is inconsistent chamber to chamber. These cylinders should be on their way to Fermin soon. Thank you!
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Post by x101airborne on Sept 3, 2021 6:38:05 GMT -5
It could also be thread choke. After getting your cylinders back, try about 50 lapping rounds and see if it gets any better.
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