Cleaning a corroded bore |
Post Reply |
Author | |
K-Z
Groupie Joined: July 19 2022 Location: Ontario, Canada Status: Offline Points: 20 |
Post Options
Thanks(0)
Posted: November 09 2022 at 3:48pm |
Apologize in advance if this topic has already been discussed or if the gunsmithing board is incorrect for this question. I bought a 1943 Aussi No1 MkIII. Nothing special about it, however the bore is dark with some light pitting at spots, and still has rust in the nooks and crannies. I know the damage has been done and can't be reversed, however what would you recommend for cleaning out the residual rust? I've ruined 3 bronze brushes, and used plenty of patches but no matter how much elbow grease I use the patches still come out brown. Any suggestion and tips would be greatly appreciated.
|
|
britrifles
Senior Member Joined: February 03 2018 Location: Atlanta, GA Status: Offline Points: 6539 |
Post Options
Thanks(0)
|
K-Z, what solvent have you been using? I would try Kroil and bronze brushes. Don’t reverse the brush in the bore, that will bend the bristles making it impossible to reach the bottom of the grooves. Push it right out the muzzle. It’s not a pristine match barrel, so carefully pull the brush back in the muzzle and out the chamber end. After a few dozen passes with the brush, wipe out with a dry patch and then reapply Kroil with a wet patch.
Let it soak in Kroil a few days and repeat the above until your satisfied.
|
|
Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
Post Options
Thanks(0)
|
Kroil and fine steel wool.
|
|
scottz63
Senior Member Joined: November 08 2021 Location: Mid Mo Status: Offline Points: 829 |
Post Options
Thanks(0)
|
Kroil for sure. It will eat that rust right up.
|
|
14EH AIT Instructor-PATRIOT Fire Control Enhanced Operator/Maintainer
|
|
K-Z
Groupie Joined: July 19 2022 Location: Ontario, Canada Status: Offline Points: 20 |
Post Options
Thanks(0)
|
So far all I've used is hoppe's No.9 and G96 cleaner. I've tried using steel wool with my patches with no real results. I'll see if I can get my hands on some kroil never seen it up here in Onterrible.
|
|
shiloh
Senior Member Joined: January 08 2019 Location: Ontario, Canada Status: Offline Points: 2369 |
Post Options
Thanks(0)
|
The last rusty barrel I cleaned I used a rust desolver I got at CTC. Corked the muzzle then filled the barrel let simmer over nite, drain, transmission oil and a few strokes with a stainless brush, then patch and oil. Came out pretty good, though still dark and a bit frosted, but it is what it is, rust unchecked can do a lot of damage quickly. The above mentioned is an excellent method as well, but I`ve never been able to find Kroil around my neighborhood.
|
|
Lead from the front; eliminate all obstacles...
|
|
britrifles
Senior Member Joined: February 03 2018 Location: Atlanta, GA Status: Offline Points: 6539 |
Post Options
Thanks(1)
|
I add a bit of Kroil to Hoppes 9, helps loosen fouling and carbon in routine cleaning. Got that idea from a very good gunsmith I know.
|
|
scottz63
Senior Member Joined: November 08 2021 Location: Mid Mo Status: Offline Points: 829 |
Post Options
Thanks(0)
|
That's a good idea. Thanks!
|
|
14EH AIT Instructor-PATRIOT Fire Control Enhanced Operator/Maintainer
|
|
Doco Overboard
Senior Member Joined: January 26 2020 Location: USA Status: Online Points: 199 |
Post Options
Thanks(0)
|
I sometimes use boiling hot soapy water, then follow up with a Kroil-stiff bronzed brush. Not a good feeling to me when peering through a bore, observing those dark remnants of that hopeful bit of rifling, then cleaning till it slightly withers away. Plenty of boiling hot soapy water, in a bucket, will give a good wash. Break up crud etc. Ill even alternate with good doses of liquid wrench or similar (cheap) if the need may be into a big effluent mess of soapy water.. JB bore paste treatment will brighten too, as will shooting/getting the barrel hot.
|
|
lawndart
Groupie Joined: December 07 2022 Location: Boston, MA Status: Offline Points: 67 |
Post Options
Thanks(0)
|
If the Kroil idea doesn't work, you might consider buying some bore lapping bullets from David Tubb to see if that polishes it up.
Lawndart
|
|
Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
Post Options
Thanks(0)
|
J-B bore paste? It worked nicely on my '14 Beezer with the mildly pitted bore? |
|
Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
|
|
britrifles
Senior Member Joined: February 03 2018 Location: Atlanta, GA Status: Offline Points: 6539 |
Post Options
Thanks(0)
|
I’m a believer in JB, hit the throat with 20 strokes of JB every few hundred rounds. Don’t overdo it tho…
|
|
K-Z
Groupie Joined: July 19 2022 Location: Ontario, Canada Status: Offline Points: 20 |
Post Options
Thanks(0)
|
Success! Kroil was 50 bucks for an 8oz bottle, so I
went with what Shiloh said and got some cheap rust cleaner from CTC.
Plugged the muzzle with a foam ear plug, and let the cleaner do it's
thing for 24hrs. After some thorough brushing I ran some patches down
the bore to find this mess. (The leftmost patch). The cleaner worked
surprisingly well for removing and softening all the gunk left in the
barrel. The center patch was after a second soak (just to be safe).
Afterwards I used some J-B bore paste on an old bronze brush, LOTS of
patches with hoppes No9 and J-B paste as needed. Now the patches come
out clean! The bore aint the best but at least it's clean! |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |