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+P, +P+ 9mm in Blackhawk Convertible

This is a discussion on +P, +P+ 9mm in Blackhawk Convertible within the Ruger Single Action forums, part of the Pistol & Revolver Forum category; Forgive me if this is a dumb question. Every time I buy ammo online, I like to buy a box or 2 of "fun" ammo. ...


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Old May 18th, 2017, 01:11 PM   #1
 
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+P, +P+ 9mm in Blackhawk Convertible

Forgive me if this is a dumb question.

Every time I buy ammo online, I like to buy a box or 2 of "fun" ammo. Usually, I go for +P or heavyweight offerings.

I'm going to order more ammo soon, and I was wondering whether 9mm +P or +P+ rounds would be okay to use in my Blackhawk. I know the Blackhawk is a darn sturdy gun, but I also know that 9mm and .357 magnum have similar pressure limits (35,000 psi, if I'm not mistaken).

Would a +P 9mm round damage the gun or am I good to go?



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Old May 18th, 2017, 01:40 PM   #2
 
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I'm pretty sure you can feed your Blackhawk convertible any factory loaded 9mm without concern. There is a lot of steel in the cylinder surrounding those chambers. I don't own one however and have no personal experience shooting those loads. Hopefully a forum member with first hand experience will chime in. I do wonder "why" though. I figured the 9mm option was for low cost plinking. Won't the +P loads cost the same as .357 loads, if not more?
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Old May 18th, 2017, 02:55 PM   #3
 
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I'd stay clear of any ammunition that is "+p+", as there is no SAAMI standard for such a critter.

But any SAAMI level ammunition will be safe in a Blackhawk.

Bob Wright
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Old May 18th, 2017, 03:52 PM   #4
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Want a nice bang? .... Maybe some recoil and a fire plume about 3 feet long? Try some 357 Mag ammo. Brand is not important, they all deliver on their promises .... way more than a 9mm.
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Old May 18th, 2017, 04:01 PM   #5
 
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I'm sure it's okay to use. That same Blackhawk frame was once made in 357 Maximum and it handled those pressures just fine.
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Old May 18th, 2017, 04:05 PM   #6
 
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I purchased 3000 rounds of IMI 158 grain smg ammo. 1500 fps from my 61/2 inch blackhawk with the 9 mm cylinder. I shot all 3000 rounds with no ill effects and that was 10,000 9 mm rounds ago. 1500 fps is a warm load in 357 158 grain the smaller 9 mm case who knows what the pressure was. But my blackhawk came through fine.
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Old May 18th, 2017, 04:25 PM   #7
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Anyone know what pressure the Blackhawk convertable 357/9 is tested for by Ruger?

The 327 FM in a Blackhawk 5.5 bbl is making 48,000 PSI of chamber pressure, and I think I had read way back when I bought it that Ruger had tested it to 65,000 psi.
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Old May 18th, 2017, 04:25 PM   #8
 
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Quote:
Originally Posted by Bob Wright View Post
But any SAAMI level ammunition will be safe in a Blackhawk.

Bob Wright
I figured it would probably be okay. That cylinder is a hefty one!
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Old May 18th, 2017, 07:37 PM   #9
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There was an interesting article in a recent issue of Dillon's Blue Press regarding pressure and +P ammo. What I got out of it was +P is fine for any modern firearm but a steady diet of it should be reserved for more durable guns. IMO the Blackhawk qualifies as a more durable gun. I have one, a flattop convertible, and I wouldn't hesitate to feed it a steady diet of 9mm +P.

The article also convinced me that +P+ was a wildcard. It may be ok or it may not. I decided that +P+ is not something I want to play around with in my guns. YMMV.
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Old May 25th, 2017, 06:43 PM   #10
 
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I have shot 9mm +P+ extensively in mine with no issues. I sighted mine in at 25 yards first shooting .357's and then switched cylinders and fired 9mm +p+.

My Blackhawk printed dead center (side to side) and (top to bottom) with .357's. The 9mm +P+ printed dead center (side to side) and (low) from the .357 sight settings.

I had to run the rear sight up 3 clicks from the .357 settings to bring my 9mm +P+ hits up to the dead center mark.

These guns are "horses" and will handled hot loads just fine...but what do we expect?
They're RUGERS!
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Old June 5th, 2017, 05:39 PM   #11
 
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Police departments have been shooting truckloads of 9mm +P+ from Federal, Remington, and Winchester; for decades. One Illinois trooper decided to wear out his S&W and last I heard was over 50k rds of the hot stuff with no problems.
On average, I'm sure it wears out guns a little sooner but I'll be happy if I live long enough to wear out my 9's.

I stay away from smaller "boutique" ammo companies, one popular brand had 9mm +P that gave me over 100 fps faster than +P+ from any of the majors, and the pressures were so high that cases were sticking in the chamber and the extractor was ripping/slipping through the rim. Primers were totally flat.
Same problems with two different lots.
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Old June 5th, 2017, 07:06 PM   #12
 
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Last summer I had a little "oopsie" with my flattop convertible. I was shooting some moderate .357 handloads, when suddenly one of them went BOOM!, and scared me half to death. That was the first (and so far the last) time I had ever double charged a round.

After I collected my wits, and made certain I was still all in one piece, I inspected my Blackhawk, and it was fine. While I'm sure it wasn't all that good for it to do what I did, the Balackhawk shrugged it off like it was nothing. Ruger seems to build them strong.
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Old June 5th, 2017, 09:32 PM   #13
 
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SF, I had a stainless 357/9MM convertible and used and chronographed all manner of 9MM, including +P+, with only one issue. I found that with my particular gun, I had to make sure the chambers had no oil residue, or the tapered case 9MM would back up and tie up the cylinder. This with any 9MM ammo, not just +P+. Didn't think to ask other Forum members here if any of them had experienced this with their convertibles.

Don't be surprised though, that when using some of the warmer 9MM, including +P+ ammo, recoil will feel closer to .357 than any 38 Spcl. +P you're likely to encounter. For instance, the Federal 9MM 115 grain 9BPLE +P+ averaged 1372 FPS in my 4 5/8" Ruger. The IMI 124 grain NATO 1305 FPS, etc.
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