9mm in a revolver or an automatic?

I recall something from S&W way back when saying the limit pin was to drive the case back into the cylinder after firing to prevent the case setting back to the breeck face and binding the cylinder. As I recollect, the limit pin strikes the case after the firing pin strikes the primer. The lag in timing between the movement of the two pins is probably milliseconds.

Mr. Parker posed the question of why get a 9 mm if the .38/.357 is available in the same package. In response, I will state that I have several S&W 547s and a couple of S&W 65s. These are essentially the same platform and I can say my preference is the 547. For me the 547 is more accurate and more comfortable to shoot. Other folks may have a different opinion which I can respect. My Speed Sixes, 9 mm with 2 3/4" barrels do not feel as comfortable as the 547 either.
 
nefprotector

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I see no point in a semi auto caliber revolver. It use to be that all 9mms were large but no that they are scaled down tremendously. I see no point for a small, med or large 9mm wheelie.
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I do, for one you can keep 9MMs for semi's and Revolver's, and collecting the shell's from relover would be easier. 9mm are also a little cheaper than .38s and .357s, and more powerful than a .38.
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Agree, or disagree?
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Well?
 
9mm Luger (9 X 19) revolvers mfg

S&W 547 3" (RB)
S&W 547 4" (SB)
S&W 940 2"
S&W 940 3" (2 yrs only)
Ruger Police Service-Six 2 3/4" (SB)
Ruger Speed-Six 4" (RB)
Ruger Speed-Six 2 3/4" (RB)
Ruger Sp-101 2 3/16"
Ruger Sp-101 3 1/8"
Astra Police 3" (SB)
(FN assembled some Astra Police revolvers, calling them FN Barracudas)
Taurus 905 blue or stainless (hard to find) 2"

The Taurus 905 seems to be currently available
 
yeah as stated above this could be more of a revolver vs automatic because there are a few calibers that come in both revolvers and autos.

There is the obvious 22 in both revolvers and automatics.

There is the 357 magnum in revolvers and then a few of the automatics like the Coonan and the Desert eagle

The 44 magnum comes in revolvers and the Desert eagle

the 50AE comes in the Desert eagle and the BFR revolver.

there is also the 45 acp in many automatics and in a few revolvers


Id like to see a chronograph of guns with the same caliber and barrel length comparing velocity.
 
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If anybody wants to buy me a chronograph, I'll compare my 3 inch SW 547 revolver to my 3 inch Kahr CM9 semi-auto. :)
 
While its an interesting subject, the fact is that chronograph data between revolvers and autos, even with the same barrel length is essentially irrelevant.

Yes, the revolver does lose some velocity due to the barrel/cylinder gap. Dpenending on who is doing the telling, its 15-30fps or 3 % or 15% or some other number.

Sometimes it seems to be a critical amount in someone's thinking, but myself, I don't think it matters. And the basic reason it doesn't is that guns are individuals. Each one shoots the same as, or faster, or slower than the next.

I have seen guns with identical barrel lengths vary as much as 100fps velocity with the same ammo, and it wasn't the ammo's fault. This much is on the outer edge of usual, but it does happen. Usually the difference is about half that, or less. But sometimes, its not.

If your semi shoots faster than an equal barrel length revolver, it could just be the difference between the two barrels, and cylinder gap has little to do with it. If your revolver shot faster than your auto (which is possible), how would you explain that, using cylinder gap as your only parameter? Can't.

There is more to it than just cylinder gap, and most of the time the actual difference measured is trifiling anyway. Its nice to know, intellectually, but doesn't change real world performance.
 
I've got 4 9mm pistols and 1snubbie 9 revolver and a convertable 357/9mm. The one thing I really love about my revolvers is since I reload I can lighten the load in my reloads and enjoy shooting so much better. However most of my lightened loads will not cycle in my S&Wons so I have to use stiffer loads in them to even get the gun to work. Point being that I can shoot point of aim with the revolvers and not the autos, and I'd rather hit where I aim than have a more powerfull bullet that would miss.
 
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I just picked up a Blackhawk convertible 357/9mm. I think having options for three types of ammo are good options. My wife likes the 38 spc. better for the softer recoil. I have other 9's, so it's a good combo because we always have at least one of these cartridges available. It isn't a double action but the simple platform make it a good choice for reliable home protection.
 
I have the Taurus 908, 9mm snub nosed revolver. It is more powerful than .38s in 2" barrels, and has very little recoil. It is one of my favorite guns to shoot! To me, the biggest advantage of having a 9mm revolver, is I can shoot it more, due to cheaper ammo. That's one gun I'll never trade.
 
My experience confirms KyJim's posted figures. I have a S&W 940 and the 115 Cor-bon was about the same speed as a .357 125gr JHP from a 3" mod 65. The 9mm is a great round for a snub.
 
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