Ruger .357-9MM Conversion

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Ruger .357-9MM Conversion

Post by g2072 on Tue Aug 02, 2011 12:23 am

Anybody had any dealing with the .357-9mm conversions. How would the gun shoot the 9mm and would they harm the barrel if you shot very much. Looking for a Ruger in .357 and was just tossing the idea around of getting one of the ones with the 9mm cylinder also.

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Re: Ruger .357-9MM Conversion

Post by jakeg823 on Tue Aug 02, 2011 12:46 am

Why would it harm the barrel? It's the same bullet diameter(correct?)....and the .357 is a much hotter load than a 9mm....you're worried about the wrong caliber I believe, since there are sometimes issues with flamecutting when firing too much .357.

But I'm no revo guy so I could definitely be completely wrong here...

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Re: Ruger .357-9MM Conversion

Post by cottonmouth on Tue Aug 02, 2011 10:46 am

A Blackhawk convertable will last longer than you will no matter what you shoot in it. As far as 9mm, they will not be as accurate as .357's because there is too much of a jump from the case to the barel with the shorter bullet.

J.B.

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Re: Ruger .357-9MM Conversion

Post by g2072 on Tue Aug 02, 2011 11:14 am

Thanks, I just didn't have any first hand knowlege about the 9mm. I have a High Power and was just thinking about the conversion but may just go with the .357.

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Re: Ruger .357-9MM Conversion

Post by pinetor on Tue Aug 02, 2011 11:38 am

I do not think that such a conversion would be worth it. The .38/.357 would offer all the range of ammo you would want. The 9mm would go down the barrel jut fine, but the cylinder would have be set up for a rimless case ( I suppose you could use moon clips).

Other than possibly ammo cost there is no benefit to using 9mm over .38. The ammo cost is simply based on a higher demand for 9mm and therefore a greater scale of economy.

Flamecutting is not really an issue for most guns, and generally not at all for Ruger. Now what can be a problem is that shorter loads can build up scarring in the cylinder that then makes using longer loads slightly problematic. Good cleaning practises mostly eliminate such issues.

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Re: Ruger .357-9MM Conversion

Post by inthe10ring on Tue Aug 02, 2011 12:06 pm

pinetor wrote:I do not think that such a conversion would be worth it. The .38/.357 would offer all the range of ammo you would want. The 9mm would go down the barrel jut fine, but the cylinder would have be set up for a rimless case ( I suppose you could use moon clips). ...


I had one of these conversions (won it in a raffle), but traded it before I shot it. I agree that the .38/.357 would have probably been the only cylinder I would have used, unless 9mm were the only rounds I had available. I wasn't aware of a moon clip that would work in a single action revolver (cylinder doesn't swing out). Is there one?

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Re: Ruger .357-9MM Conversion

Post by Docs150 on Tue Aug 02, 2011 2:51 pm

The Ruger Blackhawk conversion .357/9mm used to be on my list and is still on my mind. Never run out of ammo and you can carry it and your xd and be set...Either barrel length...the 4+ or the 6+ would be very good...If I still had my Marlin 1894cs I'd still go for it...TWO cylinders with this gun of course...check it out at galleryofguns.com
A barrel designed for .357 isn't gonna worry about 9mm wearing it out...

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Re: Ruger .357-9MM Conversion

Post by Tennjed on Tue Aug 02, 2011 8:53 pm

I have one (and a 45 colt /45 acp convertable) and love them both. Since it is a single action, no mood clips are needed. Just swap cylinders which takes about 30 seconds.

Some people say there is a decrease in accuracy with the 9mm, b/c it is a slightly smaller dia. bullet. I can't tell a difference. I am not some great target shooter, but I ain't too bad. For plinking, you will not be able to tell a difference.

As for why. Lots of reasons. The main one is I own other 9mm autos and some times I just want to shoot my 9mm's. It is nice just to throw the Blackhawk in the other bag and carry nothing but 9mm ammo. Also cheaper factory, and if I take a new shooter out I can let them shoot auto's and a single action and pay for the ammo and not worry about the price.

Also I like to shoot so I enjoy geting the blackhawk out with 357's, 38sp, and 9mm and seeing IF i can't tel a difference in accuracy. Shoot all day with one gun and have 3 different calibers to compare.

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Re: Ruger .357-9MM Conversion

Post by Tennjed on Tue Aug 02, 2011 8:55 pm

Also forgot to add, I have 4 Ruger single actions and the 357/9mm convertable (6 1/2" blued) is the most accurate of all of them......in all 3 calibers.

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Re: Ruger .357-9MM Conversion

Post by Docs150 on Wed Aug 03, 2011 8:47 am

Good post Tennjed. If the cylinder headspace is correct for the 9mm cylinder included with the Blackhawk I see no real reason for any problem with accuracy and such..."anyone chime in here". As for having 3 rounds to shoot in same revolver...my favorite part. I want to see 'fore long how that 6 1/2" barrel does and is a reason that gun is still on my radar. Would be a great gun to pair with my 4" 686-3 wearing it in bandolier position with S&W on side. Couple of ammo carriers and you'd have a good wood-walking set-up. .38(.357-.358)(9mmX29R) in European speak and the .357 are within micrometers of 9mm(.354-.36) in width so there you have it as far as going down the barrel...with the .38 being shy of 1/2" and the .357mag another +- .10 in overall cartridge length some folk worry about the 'jump' but as long as it goes past the forcing cone into the rifling well the problem should end there. The lighter 9mm will probably shoot below the usual .38/.357 158g which is usually a fair amount higher in trajectory. Don't recall about Rugers but they are probably like the Smith and originally regulated for the 158g also as far as sighting in. Figure out what it does...problem solved.

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Re: Ruger .357-9MM Conversion

Post by g2072 on Wed Aug 03, 2011 5:35 pm

I ordered the Ruger Vaquero in .357,blue with the black grips. I just couldn't bring myself to spend the extra on the conversion. Now I'm waiting on friday to get here. Will probably be looking for a set of walnut grips for it. Thanks for the replies.

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Re: Ruger .357-9MM Conversion

Post by Cowboy29 on Thu Aug 04, 2011 4:01 pm

I have a Ruger New Model Blackhawk .357 in SS 6.5 in barrell. I sent the gun back to Ruger and they timed a 9mm cylinder for it. Only problem they sent me a blued 9mm cylinder for a SS revolver. I did this about 15 years ago have had no issues other than the miss matched cylinder. Shoots good in .38, .357 as well as 9mm lot of fun to shoot since the 9mm is not as hot in the large fram revolver had not noticed a tremendous drop off in accuracy either. It is by far my favorite revolver to shoot.

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Re: Ruger .357-9MM Conversion

Post by Cowboy29 on Thu Aug 04, 2011 4:12 pm

I have a Ruger New Model Blackhawk .357 in SS 6.5 in barrell. I sent the gun back to Ruger and they timed a 9mm cylinder for it. Only problem they sent me a blued 9mm cylinder for a SS revolver. I did this about 15 years ago have had no issues other than the miss matched cylinder. Shoots good in .38, .357 as well as 9mm lot of fun to shoot since the 9mm is not as hot in the large frame revolver and cheaper than .357. I have not noticed a tremendous drop off in accuracy either. It is by far my favorite revolver to shoot.

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