Glock Talk
Welcome To The Glock Talk Forums.
 |
|
06-01-2012, 09:01
|
#1
|
|
Senior Member
Join Date: Sep 2009
Location: U.S.A.
Posts: 13,471
|
Are Sig barrels really this slow?
http://www.hkpro.com/forum/hk-handgu...elocities.html
Many types of 9mm ammo tested. The G19 was consistently the fastest and except for one or two cases the P2000 (3.66" barrel) beat even the P226 (4.41" barrel). I guess that polygonal rifling is the difference? But still, I can't believe a 3.6" barrel is faster than a 4.4" one.
Last edited by cowboy1964; 06-01-2012 at 09:03..
|
|
|
|
06-01-2012, 09:13
|
#2
|
|
Beard One
Join Date: Apr 2011
Location: Arlington, VA.
Posts: 7,492
|
The barrel on the P226 is also has polygonal rifling.
So, not sure.
|
|
|
|
06-01-2012, 09:20
|
#3
|
|
Senior Member
Join Date: May 2002
Location: Livin in the country of NJ
Posts: 11,613
|
Quote:
Originally Posted by M&P15T
The barrel on the P226 is also has polygonal rifling.
So, not sure.
|
I believe Sig barrels use standard land and groove rifling and not polygonal.
__________________
Here's a toast to our wives and to the women we loved. <pause> May they never meet.
The M1 Garand rifle is the best battle implement ever devised by man.
|
|
|
|
|
06-01-2012, 09:25
|
#4
|
|
Senior Member
Join Date: Jul 2001
Location: Alabama
Posts: 6,441
|
My P226 is "slower" than any 9mm I have run side by side chronograph tests with.
Including Colts of 5" and 4.25", Plastic M&P, and G17.
__________________
I have a few facts and a lot of opinions.
|
|
|
|
|
06-01-2012, 09:33
|
#5
|
|
Senior Member
Join Date: Dec 2009
Posts: 2,735
|
Quote:
Originally Posted by M&P15T
The barrel on the P226 is also has polygonal rifling.
So, not sure.
|
Sig barrels are hammer forged, but have conventional rifling.
|
|
|
|
|
06-01-2012, 09:50
|
#6
|
|
Beard One
Join Date: Apr 2011
Location: Arlington, VA.
Posts: 7,492
|
Quote:
Originally Posted by m2hmghb
I believe Sig barrels use standard land and groove rifling and not polygonal.
|
Quote:
Originally Posted by arclight610
Sig barrels are hammer forged, but have conventional rifling.
|
I could swear the P226 I owned about a decade ago had polygonal rifling. Unless I'm getting it confused with the USP40 I owned at about the same time.
|
|
|
|
|
06-01-2012, 10:56
|
#7
|
|
Shower Time!
Join Date: Mar 2005
Location: USA
Posts: 8,761
|
Just happen to have my P239 broken down in front of me for cleaning. A quick look confirmed it has standard rifling, not polygonal.
|
|
|
|
|
06-01-2012, 11:02
|
#8
|
|
Got Haggis?
Join Date: Jun 2011
Location: South Carolina
Posts: 138
|
Quote:
Originally Posted by M&P15T
The barrel on the P226 is also has polygonal rifling.
So, not sure.
|
Quote:
Originally Posted by arclight610
Sig barrels are hammer forged, but have conventional rifling.
|
Quote:
Originally Posted by M&P15T
I could swear the P226 I owned about a decade ago had polygonal rifling. Unless I'm getting it confused with the USP40 I owned at about the same time.
|
I've got an older 226 with conventional rifling, hadn't seen/heard of them doing it any other way, not from the factory at least.
|
|
|
|
|
06-01-2012, 11:45
|
#9
|
|
Chipperrrrr
Join Date: Nov 2010
Location: BMT, TX
Posts: 3,252
|
All sigs have traditional rifling. The only companies that I know of that use polygonal rifling is HK and Glock. Bing!
__________________
John
|
|
|
|
|
06-01-2012, 12:20
|
#10
|
|
Senior Member
Join Date: Nov 2010
Location: TX
Posts: 1,691
|
Sig uses standard rifling.
__________________
Spent brass to me is like the ring to Gollum "We wants it, we needs it. Must have the precious"
|
|
|
|
|
06-01-2012, 12:31
|
#11
|
|
Senior Member
Join Date: Nov 2010
Location: TX
Posts: 1,691
|
Magnum Research also uses polygonal rifling.
__________________
Spent brass to me is like the ring to Gollum "We wants it, we needs it. Must have the precious"
|
|
|
|
|
06-01-2012, 13:26
|
#12
|
|
Senior Member
Join Date: Sep 2004
Posts: 796
|
As long as they are accurate does it matter that much?
|
|
|
|
|
06-01-2012, 14:43
|
#13
|
|
Chipperrrrr
Join Date: Nov 2010
Location: BMT, TX
Posts: 3,252
|
Quote:
Originally Posted by FreeAmerican
As long as they are accurate does it matter that much?
|
I think Cowboy was just saying. Then again you have many OCD gun owners that take everything into account. Can't really blame them.
__________________
John
|
|
|
|
|
06-01-2012, 18:47
|
#14
|
|
Senior Member
Join Date: Jan 2010
Location: S FL
Posts: 13,195
|
I wonder if 15 or 20 fps really makes that big a difference at 1100 fps or would it be statistically insignificant. That said I don't doubt that some types of barrels would be faster than others.
__________________
Bruce
I never talked to anyone who had to fire their gun who said "I wished I had the smaller gun and fewer rounds with me" Just because you find a hundred people who agree with you on the internet does not mean you're right.
|
|
|
|
|
06-01-2012, 19:05
|
#15
|
|
Zombie Hunter
Join Date: Sep 2009
Location: Pennsylvania
Posts: 1,213
|
Quote:
Originally Posted by Bruce M
I wonder if 15 or 20 fps really makes that big a difference at 1100 fps or would it be statistically insignificant. That said I don't doubt that some types of barrels would be faster than others.
|
It would be like you or me or anyone else traveling 59mph instead of 60mph. Would you really feel or see the differnce.
|
|
|
|
|
06-01-2012, 19:15
|
#16
|
|
Senior Member
Join Date: Aug 1999
Location: South Carolina
Posts: 311
|
Here is the energy formula:
Velocity squared * bullet weight / 450,240 = Ft Lbs of Energy
__________________
NRA Life Member (1977)
|
|
|
|
|
06-01-2012, 19:20
|
#17
|
|
Senior Member
Join Date: Sep 2009
Location: U.S.A.
Posts: 13,471
|
I'm not really concerned about 20 fps or whatever. And I'm sure Sigs are plenty accurate. I just think it's very interesting that a 3.6" barrel beats a 4.4". The compact Glocks (4" barrel) are such a sweet spot.
The reason I was looking for info like this in the first place is I'm contemplating an HK P2000, SK, or USPc and wanted some chrono data as their barrels are a little on the shorter side relative to the size of the gun. But HK barrels appear to be plenty fast enough.
Last edited by cowboy1964; 06-01-2012 at 19:22..
|
|
|
|
|
06-01-2012, 19:53
|
#18
|
|
Deals in Facts
Join Date: Jan 2007
Location: Depends on where I am.
Posts: 17,804
|
Quote:
Originally Posted by M&P15T
The barrel on the P226 is also has polygonal rifling...
|
Nope.
|
|
|
|
|
06-01-2012, 21:30
|
#19
|
|
Senior Member
Join Date: Sep 2009
Location: U.S.A.
Posts: 13,471
|
Quote:
Originally Posted by Cobra64
Nope.
|
|
|
|
|
|
06-01-2012, 21:35
|
#20
|
|
woo woo
Join Date: Sep 2003
Location: WA
Posts: 26,936
|
Glocks are known for chrono-ing faster than typical.
With the sig, you just run while you're shooting and make up the difference.
__________________
"You need a shotgun, man, it's got a good spread.
It's easy to load, doesn't have a lot of working parts...ya ain't gotta be that accurate, the further away you are the more **** you hit."
-B. Burr
|
|
|
|
|
06-01-2012, 21:36
|
#21
|
|
Senior Member
Join Date: Oct 2010
Posts: 790
|
Kahr has polygonal rifling too. At least in everything but the C models.
|
|
|
|
|
06-01-2012, 21:51
|
#22
|
|
Senior Member
Join Date: Dec 2009
Posts: 2,735
|
|
|
|
|
|
06-01-2012, 22:13
|
#23
|
|
Senior Member
Join Date: Oct 2011
Location: Central Ohio
Posts: 1,478
|
Interesting. Anyone know where we can find some G26 chrono data?
|
|
|
|
|
06-01-2012, 22:58
|
#24
|
|
Chicks Dig It
Join Date: Oct 2000
Location: California & New Mexico, US
Posts: 50,611
|
Quote:
Originally Posted by BillMc
Here is the energy formula:
Velocity squared * bullet weight / 450,240 = Ft Lbs of Energy
|
Thanks for the formula, but what exactly does this have to do with comparing the whole whopping of a difference in 15-fps worth of muzzle velocity?
__________________
Can you dig it?
|
|
|
|
|
06-01-2012, 23:30
|
#25
|
|
Chipperrrrr
Join Date: Nov 2010
Location: BMT, TX
Posts: 3,252
|
^^ lol
__________________
John
|
|
|
|
|
Sponsored Links
|
Advertisement
|
|
|
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 18:28.
|
|
|
