Question re: 9mm in a revolver with a .357 barrel.

[Jim March]

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...)

Thoughts?

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.\

 

[Lunicy]

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.

 

[g.willikers]

Not a problem, especially for lead bullets.
.357 Lead bullets are a common size for 9mm reloading.