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November 3, 2010, 05:22 AM | #1 |
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Join Date: March 7, 2010
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.357 barrel conversion for Walther P99?
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November 3, 2010, 06:08 AM | #2 |
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Join Date: November 9, 2005
Location: Texas
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I don't think ya can, sorry. The P99 never picked up much aftermarket support
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October 8, 2012, 06:53 PM | #3 |
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Join Date: May 24, 2011
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Bump
Been searching for a while and keep striking out. Anyone have any insight?
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October 9, 2012, 09:24 PM | #4 |
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Good luck.
.357 SIG barrels for the P99 are rare, but they are out there.
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October 11, 2012, 12:27 AM | #5 |
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I remember pondering on that some years back, and I think I may have stumbled upon the reason for the lack of that conversion... via Sig Sauer. Ok, first- the P99 slide is pretty light, as far as slides go- right? Now lets back up to the end of the Sig P228- Sig and various other folks wanted to chamber the .357 Sig ctg into a P228- no, I think it was all about the .40 S&W. Well, it wasn't a happy marrage either way. The P228 had a light stamped steel slide that was on the light and narrow side. The speed of the recoil couldn't be slowed down without adding springs that made manipulating the slide all but impossible. Too fast and harsh of a recoil beat the pistols to death The solution was the birth of the machined P229 slide which was both heavier and wider. The extra weight and width allowed retardation of the movement without sacrificing firearm life.
So that's the hypothesis I came up with- it's just too hard to convert to .357 Sig without giving up too much lifespan of the pistol.
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October 11, 2012, 09:54 AM | #6 | |
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Quote:
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October 11, 2012, 10:21 AM | #7 |
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Join Date: May 24, 2011
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Still no luck
Bar-sto and Jarvis both made them a good while ago. Walther just doesn't seem to have much of an aftermarket. |
October 11, 2012, 03:12 PM | #8 |
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Join Date: November 23, 2010
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That doesn't surprise me. To be honest, the P99 is one of those pistols that's just WAY better in 9mm than .40S&W in my opinion (kind of like the Browning High Power).
However, with the increasing poularity of the PPQ (which is the same pistol as the P99 with a different trigger group, and whose barrel is interchangeable), there is always the possibility that the conversion barrels might be re-introduced. It might be worth writing a letter to Bar-sto or Jarvis. |
October 11, 2012, 05:21 PM | #9 |
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Join Date: June 21, 2009
Location: NE Ohio
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The barrel manufacturers mentioned above quit making them for two reasons. First, not many sold. Second, there were reports of damage and short weapon life due to the increased slide velocity and recoil impulse of the higher pressure (.357SIG) round. The barrel makers decided it wasn't worth a lawsuit, and the manufacturer (Walther) wasn't ever going to recommend or endorse it. You CAN do it, just shoot it sparingly, or use reduced loads for practice.
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