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PostPosted: Mon Sep 02, 2013 4:02 pm 
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Location: Southern canada
I'm looking for some quality knowledge on how to deburr the chamber of a hatsan lothar walther barrel. I'm not 100% sure I have any but I'm guessing I have a small burr at the transfer port. Thanks guys

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PostPosted: Wed Sep 04, 2013 2:45 am 
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Small wooden dowel in your variable speed drill. Put a piece of 600grit sandpaper in the tip of the wooden dowel. Go slow and don't go past the end of the chamber, probably a 1/4" or less.

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PostPosted: Wed Sep 04, 2013 4:45 am 
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I'm just guessing but is the paper wrapped around the dowel? A dowel that less then .22 in dia, should I do this by hand first?

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PostPosted: Wed Sep 04, 2013 4:55 am 
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Knappr wrote:
I'm just guessing but is the paper wrapped around the dowel? A dowel that less then .22 in dia, should I do this by hand first?



yup, smaller the .22 probably 3/16"(.1875) would be best. slit the dowel length wise 1/4". you won't accomplish anything by hand, you need the speed of the drill.

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Pardini K10
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3 Custom Crosman 2260
Benjamin Discovery .22 w/Joe Hickey stock!
Crosman 150 pistol .22
4 Crosman MK 1 pistol .22
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PostPosted: Wed Sep 04, 2013 9:36 am 
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Just like Rick stated. Also to help out put the end of your dowel in a pencil sharpener to tapper it. Cheap insurance if you go into the rifling. Also can be done with 1/4" doweland pecil sharpener. Your able to control the depth better of the polishing. Or build a tapered ream from brass and use autosol to polish your lead area.

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PostPosted: Wed Sep 04, 2013 7:31 pm 
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Thanks guys! What grit would everyone recommend? 800-1000 etc

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PostPosted: Wed Sep 04, 2013 11:13 pm 
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Knappr wrote:
Thanks guys! What grit would everyone recommend? 800-1000 etc


I'd start with 600 paper. If the scratch doesn't disappear goto 400. Go slowly as i use it to take .00015 out of bushings bores when making them on the lathe.

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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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