Huntsman .45 cal, 1972 breech plug issue, I need help - Page 2 - Graybeard Outdoors
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post #11 of 23 (permalink) Old 09-18-2017, 10:28 PM
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Originally Posted by philngruvy View Post
There is a charge, I assume, in the barrel. I put Kroil in the nipple hole first. After it sat overnight, I removed the nipple easily. Then I put enough oil into the breech to about 1/4 " deep. This sat for 2 1/2 days. I would think that the oil would have completely saturated any powder. I have always heard good things about Kroil but I have never used it before. I will try some PB Blaster. I have used it before, generally with good results. I like the idea of using pressure to remove the load. I will explore that option.
With mine, I pulled the sabbot, bullet and dumped the powder out before we began on the breach plug. We tried various penetrating oils as well as coke-a-cola. My machinest friend made a high tensil steel tool to remove the plug; it broke when he tried it. So he cut a square hole in the plug, put a 1/2" breaker bar in it and tried to remove it that way. No go. We have been thinking about it for a couple of years now. Our next plan is to just bore it out and see what else we can do with the barrel. We have been at this project for over 10 years. gene

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post #12 of 23 (permalink) Old 09-19-2017, 12:47 AM
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One consideration on using heat is the underlug is likely soldered to the barrel, too much heat could detach it from the barrel, so you'd have to be careful and make sure to rig a heat sink on the underlug. I'd drill the 1/8" holes in the breech plug out to 3/16" or 1/4" and tap them and use grade 8 bolts to attach the breechplug tool to it, then replace the BP with a modern replacement. Of course you could probably either resolder the underlug or just have it welded back on too, or just weld in on before as part of the heating process.

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post #13 of 23 (permalink) Old 09-19-2017, 08:17 AM Thread Starter
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I need to back up and share more information. I downloaded the Hunstman manual from this site and the manual said that when the ramrod was pushed in all the way, if there is no load in it , there should be only 11/16" of the rod sticking out. Mine had 3" sticking out, so I assumed that there was a load in the chamber. I did not realize that this manual was the wrong one for my gun., so this information must be wrong. I hooked up my air compressor and shot a burst through the 1/4" nipple hole and a wad of cloth popped out. There was no bullet or powder in it. I could now see through the nipple hole, up the barrel and the bore was actually pretty shiny with great rifling.

I still cannot get the breech plug out but my question now is do I really need to? Can I properly clean the barrel and fire it as is? Also, where can I download a copy of the original manual for this gun as apparently the one I have is not valid? BTW, I bought a new 209 primer nipple and plan not to use the #11 primer nipple.
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post #14 of 23 (permalink) Old 09-19-2017, 08:29 AM
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It's on the internet, but I think it's also on this site. Look for both/either H&R Shikari and/or H&R Model 155 Shikari.
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post #15 of 23 (permalink) Old 09-19-2017, 08:52 AM
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Originally Posted by philngruvy View Post

I still cannot get the breech plug out but my question now is do I really need to? Can I properly clean the barrel and fire it as is? .
Probably, I just felt uneasy about mine even though the threads don't have any force on them (the back of the breach plug is against the receiver). The rust bothered me.
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post #16 of 23 (permalink) Old 09-19-2017, 10:05 AM
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.45 .58 .12ga manual is in the Huntsman manuals stick above, been there for several years, Sprint emailed the pages to me and I posted them.
Tim

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post #17 of 23 (permalink) Old 09-19-2017, 11:03 AM
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Don't know if this will help or not but recently purchased a similar problem child and was amazed at what Ballistol did to remove the BP and also clean the breech and barrel. Ballistol has worked wonders in black powder firearms. Though YMMV, Good Luck!
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post #18 of 23 (permalink) Old 09-19-2017, 11:24 AM Thread Starter
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Quote:
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.45 .58 .12ga manual is in the Huntsman manuals stick above, been there for several years, Sprint emailed the pages to me and I posted them.
Tim
Thanks Tim, as I mentioned earlier, I am somewhat challenged when it comes to search engines, etc. I appreciate your help.
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post #19 of 23 (permalink) Old 09-22-2017, 06:45 AM
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I would not try heat, you may very well lock everything together even worse. With Kroil, or similar, in there, I would try alternately tapping the breech plug from the muzzle using a close bore fitting metal rod and brass cushion on the end, and a brass drift punch from the breech end. You have to tap a lot repeatedly and fairly hard, but not so hard as to mushroom the breech plug. A removal tool can also be made by using an appropriate sized 3/8" drive socket with the end ground away to form two close fitting pins. tedious work but can be effective.

How did your buddy cut a square hole in the plug?

If the breech plug is already destroyed, try using the repeated tapping and an Easy Out.
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post #20 of 23 (permalink) Old 09-22-2017, 09:11 AM
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He has access to a cnc machine. That's as much as I know about how he did it.
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