M&P 9 Pistol Barrel Rifling Twist Ratio

This is a discussion on M&P 9 Pistol Barrel Rifling Twist Ratio within the MP Full Size Pistols forums, part of the Smith & Wesson MP Forum category; Does anyone know or know where I can find the twist rate for the M&P 9? I did not see it listed on the S&W ...


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Old January 10th, 2012, 01:00 PM   #1
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Does anyone know or know where I can find the twist rate for the M&P 9? I did not see it listed on the S&W site.



Thanks!
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Old January 10th, 2012, 04:03 PM   #2
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It's a 5 groove right hand twist @ 1:18.75"



IF you had my M&P Anatomy Series Manual you would know that!
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Old January 10th, 2012, 10:27 PM   #3
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The answer to this and many other questions can be found in the M&P Armorer Manual. You can download the PDF here, better yet here.
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Old January 11th, 2012, 01:41 AM   #4
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As stated above 1:18.75" for factory barrels.



Storm Lake Barrels - 1:16"

KKM Precision - 1:20"

Bar-Sto - 1:16" (not available yet)
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Old January 11th, 2012, 05:49 AM   #5
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Great information, thanks!
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Old January 11th, 2012, 05:55 AM   #6
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Quote:
Originally Posted by mp9werks View Post
It's a 5 groove right hand twist @ 1:18.75"



IF you had my M&P Anatomy Series Manual you would know that!


Tell me about your manual.
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Old January 11th, 2012, 06:29 AM   #7
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Originally Posted by harrison_creek View Post
Tell me about your manual.
mp9werks - M&P Anatomy Series Manual
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Old January 11th, 2012, 07:04 AM   #8
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NCW Ray - Thanks for the link.



KR is correct in his posting, routine technical information is available via armorer manuals. The distinction of my Anatomy Series manuals is that they include highly detailed annotated photo illustrations correlated to functions of inter-related parts and many other dimensional measurements that are absent in other publications........which is exactly why they were developed.
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Old January 11th, 2012, 07:34 AM   #9
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...which is exactly why they were developed.


Did you develop these yourself, or did the come from S&W? Thanks.



God bless,

David
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Old January 11th, 2012, 10:48 AM   #10
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Did you develop these yourself, or did the come from S&W? Thanks.



God bless,

David


All on my own as there is no single collection of information in detail from any other source on any of these guns; certainly the manufacturers wish not to publish such information.

A partial sample of available manuals attached.
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Old January 11th, 2012, 12:10 PM   #11
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mp9werks is a valued [s]member[/s] SPAMMER!!! of our community.



Just kidding about the spammer part though...
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Old January 11th, 2012, 02:55 PM   #12
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All on my own as there is no single collection of information in detail from any other source on any of these guns; certainly the manufacturers wish not to publish such information.

A partial sample of available manuals attached.


What sources did you use to validate the information in your M&P manuals? How can I be assured that if I purchase it I will be given accurate information? Thanks.



God Bless,

David
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Old January 11th, 2012, 03:00 PM   #13
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What sources did you use to validate the information in your M&P manuals? How can I be assured that if I purchase it I will be given accurate information? Thanks.



God Bless,

David


IF you find a material significant fact in error or it's not as advertised its free to you.
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Old January 11th, 2012, 03:04 PM   #14
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mp9werks is a valued [s]member[/s] SPAMMER!!! of our community.



Just kidding about the spammer part though...


We go way back Jason........remember the good old days with El Rod Cod and Girvin etc......that's when the forum was fun !
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Old January 11th, 2012, 03:15 PM   #15
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IF you find a material significant fact in error or it's not as advertised its free to you.


How can you assure me that I won't have to cross reference the information in your M&P manual to validate it.



You told me that you created a manual. I'm assuming you don't work for S&W, so this is a private endeavor.



I'm simply asking what sources did you use to get the information in your manual. Are there citations in your work?



God Bless,

David
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