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Old January 4, 2011, 04:25 AM   #1
Jim March
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Question re: 9mm in a revolver with a .357 barrel.

Let's assume I have a Ruger Blackhawk convertible, dual cylinders for 357Mag and 9mm. We can bet good money the barrel will be a closer fit with .357 projectiles.

So, what happens if we load up 9mm rounds with .357 projectiles? Call it a "semi-wildcat"?

Would it maybe be worthwhile to open the throats of the 9mm chambers just a bit? (Depending on what they turn out to measure of course...)


What I'm really interested in is setting up a second cylinder for my NewVaq in 9mm or more likely, 9x23 Winchester. Why? Because I can speed-load 'em from a tube due to the rimless shells, and they should eject faster too.\

Jim March
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Old January 4, 2011, 07:55 AM   #2
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There may be a chamber issue. Other than getting the load right, there would be none.

I don't know if the 2 thou is going to cause a chamber problem.
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Old January 4, 2011, 04:26 PM   #3
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Not a problem, especially for lead bullets.
.357 Lead bullets are a common size for 9mm reloading.
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