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PostPosted: Tue Nov 19, 2013 5:47 pm 
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Location: Manitoulin Island
I was reading in previous posts about airguns that suffer from poor accuracy can sometimes be fixed by recrowning the end of the barrel. Is this a fairly easy project that could be tackled by your average person, or does it require specialty tools and the knowledge/knowhow of a gunsmith? If it's relatively straight forward, what tools would I need and how would I go about doing it? Tried searching "how to recrown an airgun barrel", but nothing came up. Thanks

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PostPosted: Tue Nov 19, 2013 6:36 pm 
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Location: Southern Ontario
Try searching for just "crowning" or "recrowning" in the Mods and Repair section.
Personally, I use a small brass screw in a manual (crank) drill. Which size depends on whether it's .22 or .177 I'm doing. Toothpaste works OK as an abrasive, but takes a lot longer than, say, a valve lapping compound. A trick is to keep the drill moving a reverse "cone" motion, rather than straight on....

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PostPosted: Tue Nov 19, 2013 7:25 pm 
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Location: Kingston, ON
Try a Google search, it brought up many good pages for me
https://www.google.ca/search?q=how+to+r ... 2wWsjIDACQ
Don't do what "Jim" the un-gunsmith youtube guy did with the grinder though. Stick with the brass screw or ball bearing and hand tool/turning techniques.

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PostPosted: Tue Nov 19, 2013 8:34 pm 
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Location: Central West River Nova Scotia
I have a dremmel 100 plus piece kit. In it, there is a cone shaped grinder that is blue in color. It is some kind of rubber with an abrasive in it. Very gentle and perfectly shaped for recrowning. I have done all my gun,s using it and all came out perfect. Even a couple of very bad shooter,s, now shoot great. Sometimes the leadle/loading end, needs attention as well.

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PostPosted: Wed Nov 20, 2013 4:54 am 
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Location: Victoria, BC and Clarkston, WA
A brass screw with a domed head works great in a cordless drill. Go slow and keep it square!

I use a lathe, but I am a machinist.

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PostPosted: Wed Nov 20, 2013 6:49 am 
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Location: Rocky Mtn Hse Alberta
Describe the tooling you have at your disposal.

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PostPosted: Wed Nov 20, 2013 7:03 am 
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Are you asking me Walter?

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Pardini K10
Brocock Concept .22
3 Custom Crosman 2260
Benjamin Discovery .22 w/Joe Hickey stock!
Crosman 150 pistol .22
4 Crosman MK 1 pistol .22
Mrodair CP-1M .22 and .177


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PostPosted: Wed Nov 20, 2013 7:32 am 
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rrdstarr wrote:
Are you asking me Walter?


No, the OP

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PostPosted: Wed Nov 20, 2013 7:50 am 
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I just have basic hand and power tools such as drills, dremmels, grinders, files, etc. No lathes or milling equiptment or the like.

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PostPosted: Wed Nov 20, 2013 5:33 pm 
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Joined: Mon Sep 05, 2005 10:55 pm
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Location: Rocky Mtn Hse Alberta
airgunner1984 wrote:
I just have basic hand and power tools such as drills, dremmels, grinders, files, etc. No lathes or milling equiptment or the like.


File, square, emery cloth say 320 grit, 3/8" ball

File the muzzle dead flat as indicated by the square (a good one)
Polish with the emery on the file maintaining the square
Use your drill to spin the barrel while applying the emery wrapped over the ball to break the edge of the bore.
Work the 'emery ball' around as the barrel is turning to avoid cutting through the cloth and to give a better finish.
Inspect with a magnifying glass
Use a Q-tip to check for burrs
Push pellets through to feel for and look for burrs.

Walter....

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PostPosted: Thu Nov 21, 2013 12:10 pm 
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Location: Manitoulin Island
That's exactly what I was looking for. Thanks

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