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KaiserKong
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Dr Hudson's Nitro solvent
Oct 7th, 2026 at 9:23pm
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In a few old books I've seen reference to Dr. Hudson's nitro solvent. I decided to make up a mixture myself. Getting sperm oil not being a possibility these days I substituted it with jojoba oil. I must say it does do a good job at cleaning out smokeless (nitro) powder fouling in my barrels - both with lead and jacketed bullets (although in the latter case it just removes carbon fouling and not the copper). As much as I love the smell of Hoppes #9, a few other members of my household do not for some odd reason. Dr Hudson's formula does have a nice odor but is much less pungent so I guess it helps in that regard too.

Cheers,
Dave
« Last Edit: Oct 7th, 2026 at 9:43pm by KaiserKong »  
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marlinguy
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Re: Dr Hudson's Nitro solvent
Reply #1 - Oct 7th, 2026 at 10:21pm
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Better keep a lid on it whenever it's not in use as the acetone will evaporate off the mixture quickly! And of course keep it in a glass or metal container too.
  
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bpjack
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Re: Dr Hudson's Nitro solvent
Reply #2 - Oct 7th, 2026 at 10:23pm
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Sounds basically like Ed’s Red. Dextrin ATF has frequently been used as a substitute for sperm oil. Formula is equal parts Dextron, turpentine, mineral spirits and acetone. I used it years ago until I started cleaning exclusively with Kroil. 
  
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JerryH
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Re: Dr Hudson's Nitro solvent
Reply #3 - Oct 7th, 2026 at 11:00pm
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50/50 mix of Marvel Mystery Oil and Hoppe's 9 works well for me.
  
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westerner
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Re: Dr Hudson's Nitro solvent
Reply #4 - Oct 8th, 2026 at 3:14am
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My new bore cleaning system. I find it makes the mundane chore of cleaning barrels almost enjoyable.
  
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marlinguy
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Re: Dr Hudson's Nitro solvent
Reply #5 - Oct 8th, 2026 at 10:46am
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bpjack wrote on Oct 7th, 2026 at 10:23pm:
Sounds basically like Ed’s Red. Dextrin ATF has frequently been used as a substitute for sperm oil. Formula is equal parts Dextron, turpentine, mineral spirits and acetone. I used it years ago until I started cleaning exclusively with Kroil. 


I've used Kroil for all sorts of gun cleaning, lubrication, and other things for years, but boy is it getting expensive! I keep looking for some cheaper source of Kroil, but not much price difference no matter where I check.
  
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Re: Dr Hudson's Nitro solvent
Reply #6 - Oct 8th, 2026 at 4:13pm
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Great.
Get a few drops of acetone on your fingers, it’s in your heart in 15 seconds.
Today, we have wonderful solvents for everything, why folks go down this road is simply amazing.
  
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Re: Dr Hudson's Nitro solvent
Reply #7 - Oct 8th, 2026 at 4:30pm
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tim_s wrote on Oct 8th, 2026 at 4:13pm:
Great.
Get a few drops of acetone on your fingers, it’s in your heart in 15 seconds.
Today, we have wonderful solvents for everything, why folks go down this road is simply amazing. 


It all started with the mouse trap.
  
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Sure shot
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Re: Dr Hudson's Nitro solvent
Reply #8 - Oct 8th, 2026 at 5:22pm
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Millions of ladies have used acetone to remove fingernail polish,I would think that it's relatively safe unless you are drinking it.  Shocked
  
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Re: Dr Hudson's Nitro solvent
Reply #9 - Oct 8th, 2026 at 5:27pm
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westerner wrote on Oct 8th, 2026 at 3:14am:
My new bore cleaning system. I find it makes the mundane chore of cleaning barrels almost enjoyable.



LOL

I have an old container of sperm oil that's almost full. Should post a picture.
  
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Re: Dr Hudson's Nitro solvent
Reply #10 - Oct 8th, 2026 at 5:44pm
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Careful Jimmy.  Greenpeace is probably monitoring this forum.  They will be coming for you!
  
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jimmy
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Re: Dr Hudson's Nitro solvent
Reply #11 - Oct 8th, 2026 at 6:19pm
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bpjack wrote on Oct 8th, 2026 at 5:44pm:
Careful Jimmy.  Greenpeace is probably monitoring this forum.  They will be coming for you!



🤣


ETA I wonder how old this is? Had it a long time and it was from an old garage sale. Think it's the same place I bought a gallon of 111 trichloroethane. 😮

No sperm whales were harmed in the making of this post.
« Last Edit: Oct 8th, 2026 at 6:26pm by jimmy »  
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oneatatime
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Re: Dr Hudson's Nitro solvent
Reply #12 - Oct 8th, 2026 at 6:27pm
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It doesn't say it was from a whale;-)
  
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bpjack
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Re: Dr Hudson's Nitro solvent
Reply #13 - Oct 8th, 2026 at 6:28pm
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I used to use TRI 111 when cleaning cameras that I was repairing.  Just had to be careful of plastics.
  
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westerner
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Re: Dr Hudson's Nitro solvent
Reply #14 - Oct 8th, 2026 at 6:39pm
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Sure shot wrote on Oct 8th, 2026 at 5:22pm:
Millions of ladies have used acetone to remove fingernail polish,I would think that it's relatively safe unless you are drinking it.  Shocked


And now we know why women are goofy in the head.
It all sarted with nail polish remover...
  
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