Clarification: 9mm in a .357?

tanksoldier · #1 01-12-2009, 04:37 PM

Ok, with the increase of ammo prices I've gotten desperate enough to give this a shot.

Given moon/ half moon clips will UMC 9mm FMJ shoot well enough in my M65-3 or does the cylinder have to be machined to accept them?

I've got plenty of 9mm but .38/.357 is hard to come by here in practice loads.

tanksoldier · #2 01-12-2009, 04:37 PM

Ok, with the increase of ammo prices I've gotten desperate enough to give this a shot.

Given moon/ half moon clips will UMC 9mm FMJ shoot well enough in my M65-3 or does the cylinder have to be machined to accept them?

I've got plenty of 9mm but .38/.357 is hard to come by here in practice loads.

Ron H. · #3 01-12-2009, 05:00 PM

Sir, the 9 mm rounds I have here (Magtech FMJs) are too large in diameter to chamber in my Model 28.

Hope this helps, and Semper Fi.

Ron H.

Wyatt Earp · #4 01-12-2009, 05:07 PM

Ron's statement about 9 mms not fitting in the cylinder (probably because they headspace on the case mouth) gives me an idea.

Buy another cylinder and have the chambers machined to fit 9x19 and have the back of the cylinder counterbored to accept moonclips.

Now with just change the cylinder to whatever you want to shoot.

Shorty4T · #5 01-12-2009, 05:45 PM

The 9mm isn't actually the same size as 38/357. The 9mm is actually .355, so there is some difference in bore diameter.

Cheers,
Sam

john traveler · #6 01-12-2009, 06:27 PM

Please be advised that .38/.357 revolvers converted to 9mm give at best, mediocre accuracy because of the differences in barrel groove diameters.

Jellybean · #7 01-12-2009, 06:44 PM

Rons rounds don't fit in the cylinder because the 9mm has a head diameter of .392" compared to the .357s head diameter of .380".

Emerson · #8 01-12-2009, 08:34 PM

I believe that at some point in the past Ruger actually had an option of a 9mm cylinder to go with their Blackhawk .357's.............I have no idea how well they shot.

metrotps · #9 01-12-2009, 08:55 PM

For the same amount of money you would spend to have a 9MM cylinder fitted to your revolver, you could get a nice reloading setup and all the components you would need for a while.

thewolf · #10 01-12-2009, 10:31 PM

Korth also had a 9mm/.357 combo. Not sure how well they shoot and at $4k and up it is unlikely I will ever know.

Andy Taylor · #11 01-13-2009, 05:51 AM

Quote:

Originally posted by Emerson:
I believe that at some point in the past Ruger actually had an option of a 9mm cylinder to go with their Blackhawk .357's.............I have no idea how well they shot.

They still do, or maybe do again.

http://www****ger-firearms.com/Firearms/FAProdResults?fu...ct=Yes&type=Revolver

JohnK · #12 01-13-2009, 08:00 AM

I had a Ruger convertable .357/9mm years ago. (two cylinders).

The accuracy with 9mm was indeed lousy.

Wyatt Earp · #13 01-13-2009, 04:50 PM

Quote:

Originally posted by metrotps:
For the same amount of money you would spend to have a 9MM cylinder fitted to your revolver, you could get a nice reloading setup and all the components you would need for a while.

True that.

Having an ammo factory in the basement is mighty nice indeed!

scattershot · #14 01-14-2009, 09:27 AM

Another vote for reloadinng. Once you get set up, there's no cheaper ammo to be had, with the added benefit that it will fit your pistol!

HOUSTON RICK · #15 01-17-2009, 12:07 AM

Reloading or buying a 9mm pistol are a better and safer ideas IMHO.

Andy Taylor · #16 01-17-2009, 10:27 AM

Quote:

Originally posted by scattershot:
Another vote for reloadinng. Once you get set up, there's no cheaper ammo to be had, with the added benefit that it will fit your pistol!

For some of us the issue that precludes us from reloading is space or perhaps spouse related.

Ron H. · #17 01-17-2009, 11:39 AM

Quote:

Originally posted by Lucky Derby:

Quote:

Originally posted by scattershot:
Another vote for reloadinng. Once you get set up, there's no cheaper ammo to be had, with the added benefit that it will fit your pistol!

For some of us the issue that precludes us from reloading is space or perhaps spouse related.

Sir, a spouse problem can be tough, but it's entirely possible to handload in a small space. I started loading in a 650-square-foot apartment shared with a wife, two cats, and enough "stuff" for twice the space. It's inconvenient but do-able.

If you just don't want to handload, that's another thing entirely.

Hope this helps, and Semper Fi.

Ron H.

kmrcstintn · #18 01-17-2009, 11:43 AM

don't screw up your gun to save a few bucks in ammo...

a) messing with your factory .357 mag cylinder will ruin the gun's value and since the .357 mag is slightly larger than 9mm (.355) you won't gain alot of accuracy

b) buying a replacement blank cylinder and having it properly and professionally honed, chambered, and fitted is gonna cost you $$$

c) you could probably get a 9mm sigma for less that accessorizing with a second cylinder would cost

d) if you absolutely want a revolver with 2 cylinders, then get yourself a Ruger Blackhawk Convertible package that is set up from the factory with everything you need...and it's done right the first time!!!

e) save your brass, scrounge your local ranges for brass, and either get yourself started in reloading or send your brass to a reloading firm like Mastercast in Pennsylvania www.mastercast.net -- even with shipping in both directions you will pay less than factory new stuff

DHENRY · #19 01-17-2009, 12:02 PM

Here it is...

Don

Wyatt Earp · #20 01-17-2009, 05:07 PM

Quote:

Originally posted by Lucky Derby:
For some of us the issue that precludes us from reloading is space or perhaps spouse related.

I can understand space issues.

Can you elaborate on what spouse issues there may be?

If my wife was opposed to reloading in the house, I'd do it anyway.

She was opposed to guns when I mentioned buying my first one, but I did it anyway.

flop-shank · #21 01-18-2009, 06:43 AM

I'll bet you could store a reloading set up for one caliber based on a Lee Turret Press in a 2'x2'x6' (probably much less) space. That would include dies, bullets (lots of them) two or three pounds of powder, primers, fired brass, a scale, trickler, manual, misc. acessories and loaded ammo. A press could be mounted to a sturdy board and clamped to a kitchen table, workbench, or countertop if necessary.