Short mag barrel

Uranus · 02-07-2009, 03:37 AM

I have a half finished classic mag pistol project that I might finish one of these days and I was wondering how short can the barrel be and still be effective? Also what is the length of a sydarm barrel?

Smiley · 02-07-2009, 06:40 AM

Sydarm = 6.5" they were centerfeed only.
Minimag = 8" powerfeed left or right.

PM sent

99GenX · 02-07-2009, 07:56 AM

I believe it as tested and shown that only the first 4-4.5" matter.

ScrapIron · 02-07-2009, 10:01 AM

I'm thinking of setting up a short barreled mag, and I was considering going with just a python kit and getting the 2" barrel tip for it, Just food for thought.

dukie · 02-07-2009, 10:58 AM

My normal barrel is a 4" cocker threaded into a noxx adapter. It might top out at 6.5-7" or so. It also worked great by itself on my cocker, It doesn't even extend to the end of the shroud.

ta2maki · 02-08-2009, 05:25 AM

On the 8" crown point barrels that I use, the 'crown' porting starts at about 5.5 inches. So you can go at least short as that without velocity problems.

minimag03 · 02-09-2009, 09:17 AM

I have an 8 inch SP Venturi barrel if you're interested in it.

cfos00 · 02-09-2009, 09:33 AM

I have an 8 in armson on mine (new for like 40 bucks from their site), and the tip comes out to just the end of the springfeed. It works pretty well for a pistol. Like someone else said earlier, only the first couple inches matter anyway.

dead possum · 02-09-2009, 01:23 PM

i have plans to add a WWA or Doc's short tip to the freak TwistLock back that i have that puts the total leangth to around 7" (less then 5" exposed i think). i agree with 99GenX on the length.. i remember hearing/reading on one of the T.K. studies that the ball hit terminal velocity by the 5" mark (hence why most 2 piece backs are 5-6 inch long).

also once your barrel starts porting the air will push out rather then continue to push the ball, path of least resistance. so you could use that as a referance point if you were to custom cut your barrel.

02-07-2009, 06:40 AM	#2 (permalink)
Smiley MCB Member Join Date: Oct 2007	Sydarm = 6.5" they were centerfeed only. Minimag = 8" powerfeed left or right. PM sent __________________ Here are some of my projects: Dukie lever gun + wood & brass 007-brass-phantom-feed , A little nelly 007 love , 007 piercing pin substitute Zeus mods , P68SC Remmington 870 KP wood before and after , Wood for an SMG 60 RamBolt MQ Cocker , AT85 boxmag A5 Bullpup dual grip , LineSI lever changer to Phantom adapter My feedback , Proud supporter of Fox Paintball of IL

02-07-2009, 07:56 AM	#3 (permalink)
99GenX Pseudo-Agg Join Date: Apr 2006 Location: > 9000	I believe it as tested and shown that only the first 4-4.5" matter. __________________ Sincerely, Me

02-07-2009, 10:58 AM	#5 (permalink)
dukie more gooder Join Date: Apr 2008 Location: Kitchener, Ontario	My normal barrel is a 4" cocker threaded into a noxx adapter. It might top out at 6.5-7" or so. It also worked great by itself on my cocker, It doesn't even extend to the end of the shroud. __________________ The 5Th Run DSG Sales Thread DRV's in stock DSP frames in stock My Feedback

02-09-2009, 09:17 AM	#7 (permalink)
minimag03 WVU paintball #19 Join Date: Aug 2006 Location: Morgantown, WV	I have an 8 inch SP Venturi barrel if you're interested in it. __________________ Feeback Gallery

02-09-2009, 09:33 AM	#8 (permalink)
cfos00 Midget Enthusiast Join Date: Jul 2008 Location: Washington, DC	I have an 8 in armson on mine (new for like 40 bucks from their site), and the tip comes out to just the end of the springfeed. It works pretty well for a pistol. Like someone else said earlier, only the first couple inches matter anyway. __________________ My feedback: http://www.mcarterbrown.com/forums/f...-feedback.html Need a Centerflag Uprising manual? PM me.

02-08-2009, 05:25 AM	#6 (permalink)
ta2maki Jumps to conclusions Join Date: Jan 2007 Location: Sunny Southern California	On the 8" crown point barrels that I use, the 'crown' porting starts at about 5.5 inches. So you can go at least short as that without velocity problems.

02-09-2009, 01:23 PM	#9 (permalink)
dead possum Active Member Join Date: Jan 2007 Location: ask the U.S. Army	i have plans to add a WWA or Doc's short tip to the freak TwistLock back that i have that puts the total leangth to around 7" (less then 5" exposed i think). i agree with 99GenX on the length.. i remember hearing/reading on one of the T.K. studies that the ball hit terminal velocity by the 5" mark (hence why most 2 piece backs are 5-6 inch long). also once your barrel starts porting the air will push out rather then continue to push the ball, path of least resistance. so you could use that as a referance point if you were to custom cut your barrel. __________________ Dead Possum Biting, playing dead and sarcasm are a few of the skills that i offer free of charge.

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