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09-23-2006, 10:09 PM
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#1 |
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XDTalk 100 Member
Join Date: Apr 2004
Location: Mesa, Arizona. Shooting Capital of the Known Universe
Posts: 230
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.40S&W WWB Power Factor???
Anyone chorno'd this stuff? I'm sure it's in here somewhere. Just to tired to search any more. Feels a little bit snappy but not to bad. Curious what muzzle velocity's we're getting with the 5" barrel.
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Bulgarian Mak 9x18 XD Service 9x19 XD Tactical 40S&W w/Canyon Creek melted Bomars and his trigger. Swingline Staple Gun 5/16'' Beretta 390 12ga http://www.brianenos.com/forums/ http://uspsa.org/entrypage.shtml |
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09-23-2006, 10:12 PM
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#2 |
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XDTalk 5K Member
 
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Robbie uses it as his major load. Darn winchester sponsorships.
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No Matter Where You Go, There You Are. USPSA #L3077 What a great number!!! http://theknightoflight.blogspot.com/ Creator of TOP 'O' THE PAGE!!! Moose Fight |
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09-27-2006, 09:36 AM
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#3 |
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XDTalk 100 Member
Join Date: Aug 2005
Location: Nevada
Posts: 165
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WWB 165 gr FMJ
966.3 fps XDSC 10 shot average 1022.5 fps XD Service 10 shot average 1065.0 fps XD Tactical 10 shot average |
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09-27-2006, 01:04 PM
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#4 | |
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XDTalk 2K Member
Join Date: Oct 2004
Location: Sioux Falls, SD
Posts: 2,350
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Quote:
With the Tactical as the baseline Tactical = 1065 fps or 416 ft/lbs Service = -42 fps or -33 ft/lbs Sub-Compact = -98.7 fps or 342 ft/lbs (-56.2 fps or -41 ft/lbs from the Service) Of course different ammo/loads will have slightly different performance differences.
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"For those of us who exercised our privilege to serve our country, I can honestly say we did it proudly and shared a common bond of patriotism that those who were unwilling to answer our country's call will never understand or appreciate." - Dennis Foell |
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09-27-2006, 01:45 PM
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#5 |
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XDTalk 1K Member
Join Date: Dec 2003
Location: New Mexico
Posts: 1,909
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Last time i chronoed WWB in 180 grain i made 181 PF out of a 4" XD.
The 165 gr was right at 165.
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USPSA L2683 |
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09-27-2006, 05:10 PM
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#6 | |
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XDTalk 5K Member
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Quote:
__________________
No Matter Where You Go, There You Are. USPSA #L3077 What a great number!!! http://theknightoflight.blogspot.com/ Creator of TOP 'O' THE PAGE!!! Moose Fight |
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09-27-2006, 05:30 PM
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#7 | |
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XDTalk 100 Member
Join Date: Aug 2005
Location: Nevada
Posts: 165
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Quote:
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09-27-2006, 06:30 PM
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#8 | |
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XDTalk 100 Member
Join Date: Apr 2004
Location: Mesa, Arizona. Shooting Capital of the Known Universe
Posts: 230
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Quote:
Good stuff, Thanks! Yep, 190+ power factor is a tad snappy. 
__________________
Bulgarian Mak 9x18 XD Service 9x19 XD Tactical 40S&W w/Canyon Creek melted Bomars and his trigger. Swingline Staple Gun 5/16'' Beretta 390 12ga http://www.brianenos.com/forums/ http://uspsa.org/entrypage.shtml |
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09-27-2006, 09:55 PM
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#9 |
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XDTalk Member
Join Date: Aug 2004
Location: Northern CA
Posts: 66
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What's the formula for figuring power factor?
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The love of violence is inherent in the human (male) spirit. The attempt to train it out of boys is both futile and immoral. The Guru SA XD .40 Service Mosin-Nagant M44 Ruger 10/22 SS Manlicher |
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09-27-2006, 09:59 PM
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#10 |
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XDTalk 5K Member
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Bullet weight X velocity divided by 1000.
165 grain bullet going 1022FPS = 168630 / 1000 = 168.63 power factor.
__________________
No Matter Where You Go, There You Are. USPSA #L3077 What a great number!!! http://theknightoflight.blogspot.com/ Creator of TOP 'O' THE PAGE!!! Moose Fight |
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