.357 Blackhawk difficult extraction - PROBLEM SOLVED


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Ruark
January 24, 2011, 09:34 AM
I recently started a thread about the empty cases being difficult to extract from a stainless .357 Blackhawk. I'm shooting a max (16.6) load of H110 and 158 gr. XTPs with SPM primers. I fixed the problem yesterday.

I got a felt polishing tip for my Dremel tool - it's tip #422:

http://t0.gstatic.com/images?q=tbn:ANd9GcRVbWm6LUmsmL6Hga5jg3Kfs_K_KWl8QgdDm7qDRBqpei6TJNGq7Q

These were the steps:

I cut the pointed part off, making it cylindrical. Then I installed it into the Dremel chuck deep enough that it wouldn't go into the throats, only the chambers.

Then I ran it against a piece of sandpaper for JUST a second, to reduce it enough to fit into the chamber.

Loaded it up heavily with chrome rouge - usually called 531 or CR1. Use minimum speed on the tool to do this.

I flipped it up to full speed (25,000 RPM) and polished the chamber for 3 or 4 minutes, moving it around steadily and evenly. It's VERY important to keep moving it around like this. I reloaded it with rouge several times during this process. You can't use too much.

Cleaned the chamber out with a brass brush and some Hoppe's #9. Dried that up with a few tight dry patches. Wow - looks like a mirror in there!!!

Mark that chamber with a Sharpie or stick in a little wad of paper.

Repeat for the other 5 chambers. Clean everything up, reinstall cylinder.

Presto - the fired cases almost fall out. Problem solved!

Thanks again for all the posts. There were a lot of good suggestions and advice from the forum, all very educational and appreciated.

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CraigC
January 24, 2011, 11:46 AM
Glad you got it straightened out!!!

788Ham
January 25, 2011, 01:02 AM
When you shoot a lot of rounds, you'll notice a ring inside on the cylinder walls, normal occurrence. Then, take your bore brush and wrap a small piece of 0000 steel wool around the brush, fit brush into a small drill and lightly re-polish the cylinders, keeps them clean without any problems.

murf
January 25, 2011, 08:57 PM
may also want to polish the throats the same way while you are at it.

murf

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