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New Model Blackhawk Convertable 9mm Cylinder Loading Issue

This is a discussion on New Model Blackhawk Convertable 9mm Cylinder Loading Issue within the Ruger Single Action forums, part of the Pistol & Revolver Forum category; Brand new to the forum and I apologize if this question has already been asked and I missed it when searching. I recently purchased a ...


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Old February 7th, 2020, 07:38 AM   #1
 
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New Model Blackhawk Convertable 9mm Cylinder Loading Issue

Brand new to the forum and I apologize if this question has already been asked and I missed it when searching. I recently purchased a New Model Blackhawk 357/9mm convertible stainless. Fortunately, I have not noticed the accuracy issues some have out of the 9mm cylinder. Unfortunately, I have noticed issues with loading the 9mm cylinder.

More specifically, one chamber seems to have issues with seating rounds consistently. I would say around 33 percent of the time it does not fully seat on the first try, but upon puling the round out and rotating it, I can almost always get it to easily seat on the second or third try. I have had similar issues with other chambers, but far far less often. It doesn't matter whether the cylinder is clean and at room temp, or warm after 100 rounds at the range (I tried to attach a couple pictures to illustrate the issue).

I contacted Ruger and they recommended trying a different type of ammo, which I did (I have tried Blazer Brass and Federal 115 grain). The Federal seems to be a lot better, but the issue remains. My concern with sending it in is the representative I spoke with indicated Federal is one brand they use to test in the factory, and she said if it works (and 2/3 of the time it does with no issue) they will just send it back and she would hate for that to happen (me too, haha).

Has anyone else experienced this issue and if so, is it something that might eventually improve on its own or will I need to take some action (sending it back to Ruger with my fingers crossed they experience the same issues as I do). Any thoughts or advice is much appreciated!
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Old February 7th, 2020, 08:44 AM   #2
 
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Good Day,
Try a thorough cleaning of the chambers with a bronze cleaning brush and some bore solvent. I had a similar issue with a 9mm barrel that corrected itself with a good cleaning. The problem must have been a chip or some crud left over from the manufacturing process. hth
Best,
Rob
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Old February 7th, 2020, 09:02 AM   #3
 
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robmkivseries70, I appreciate the feedback. I gave it a standard cleaning before taking it to the range and after, but I will give it an above and beyond scrubbing and hopefully that fixes things
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Old February 7th, 2020, 11:33 AM   #4
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When you look at a cartridge, it appears to be perfectly round …. but it's not. Same with the chamber …. looks round but is very slightly oval. When you put a cartridge in a chamber and it has to be rotated to fit, that should tell you something …. like you have to mate the two ovals to get a fit. Likely the chamber is less than .001" out of round and the same for the cartridge. With a snug chamber, the two out of round conditions is enough to prevent the cartridge from chambering.

What can you do? Obviously you can try a different brand of ammo, which you did and got a partial remedy. You can also burnish the chambers in your cylinder, especially the one that is the most problematic. You can make a good burnishing tool quite easily by wrapping a piece of maroon 3-M abrasive pad around a 22 cal bore brush. Put the threaded end of the bore brush in an electric drill then apply a liberal amount of Hoppe's #9 solvent. With the drill on a slow speed, move the brush in and out. About 30 seconds of rotation should do the trick. Pull the brush and abrasive pad out, clean the chamber thoroughly, then test with cartridges know for binding up. Burnishing removes a very small amount of metal so you may have to repeat the process to eliminate the binding problem.
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Old February 7th, 2020, 03:25 PM   #5
 
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Iowegan, I appreciate the detailed answer. As to whether I trust myself to do that, I donít know, haha...but I appreciate knowing what will help.
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Old February 7th, 2020, 08:01 PM   #6
 
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I don’t think this will help your problem, and it’s probably standard procedure for folks here, but I always use a .40 caliber brush to clean cylinder holes on my .38/.357 and 9mm cylinders. Just throwing that out there.
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