boring and shortening 8in sp venturi barrel

fog · 10-21-2007, 10:38 AM

Im considering having a barrel milled to accept freaks and cutting the barrel at the 1st port (closest to the marker)as ive heard if a ball breaks it sprays paint on ur mask any issues w/doing either? and a estimated price ?Also i think i know the answer but i was told (by a pb shop owner)that shortening the barrel will decrease distance an accuracy.
Opinions please

Mespllingesnogud · 10-21-2007, 11:13 AM

velocity could decrease by a small amount, but just adjust the velocity.
I have never heard of paint spraying out of the porting onto someone. Accuracy won't change whatsoever. A 1 inch barrel has the same accuracy as a 20 inch barrel. The shorter the louder.

UThomas · 10-21-2007, 11:42 AM

I think a 6" barrel shoots the same as a 20 inch - but there would be a noticeable difference with a 1" barrel.

fog · 10-21-2007, 11:54 AM

Me,on this barrel it has reverse porting closest to the marker,when i looked at reviews multiple peeps said it had sprayed paint on there mask

Surge-NS · 10-21-2007, 01:13 PM

It takes about 8" for the ball to accelerate completely to 280-300 range. Shortening the barrel beyond that means the ball is still accelerating as it leaves. This can sometimes cause the ball to take on a bit less of a regular arc, because it no longer has the barrel to keep the propellant gas behind it evenly. In a perfect world this would not matter, with a stationary barrel and a single shot. However, because of outside influences such as wind and the tendency to rapid fire while moving, thus creating puffs of propellant rapidly in a different direction than the first, it can negatively affect accuracy.

fog · 10-21-2007, 01:49 PM

this barrel is 4.5 to the 1st porting,so is this NOT a barrel to be bored for freaks ?

Schmitti · 10-21-2007, 02:56 PM

You need someone to tell you the length of a freak insert. That and you will need to bore from the front and then come up with a thread in/on keeper to keep the freak insert in the barrel

E

10-21-2007, 10:38 AM	#1 (permalink)
fog Active Member Join Date: May 2007 Location: MELB,FL	boring and shortening 8in sp venturi barrel Im considering having a barrel milled to accept freaks and cutting the barrel at the 1st port (closest to the marker)as ive heard if a ball breaks it sprays paint on ur mask any issues w/doing either? and a estimated price ?Also i think i know the answer but i was told (by a pb shop owner)that shortening the barrel will decrease distance an accuracy. Opinions please __________________ FOG = FAT OLD GUY http://www.automags.org/forums/showt...&highlight=FOG http://www.mcarterbrown.com/forums/f...-feedback.html

10-21-2007, 11:42 AM	#3 (permalink)
UThomas MCB Member Join Date: Jul 2006 Location: Texas	I think a 6" barrel shoots the same as a 20 inch - but there would be a noticeable difference with a 1" barrel. __________________ Thomas Lots of automags and autocockers - esp Eclipse, Westwood, and Belsales REWARD: 2 Stolen Splash Evolutions in Dallas http://www.thomaspaintball.com http://www.youtube.com/user/Thomas4093

10-21-2007, 11:54 AM	#4 (permalink)
fog Active Member Join Date: May 2007 Location: MELB,FL	Me,on this barrel it has reverse porting closest to the marker,when i looked at reviews multiple peeps said it had sprayed paint on there mask __________________ FOG = FAT OLD GUY http://www.automags.org/forums/showt...&highlight=FOG http://www.mcarterbrown.com/forums/f...-feedback.html

10-21-2007, 01:13 PM	#5 (permalink)
Surge-NS Devious Penguin Mod Join Date: Mar 2006 Location: Brookfield, IL	It takes about 8" for the ball to accelerate completely to 280-300 range. Shortening the barrel beyond that means the ball is still accelerating as it leaves. This can sometimes cause the ball to take on a bit less of a regular arc, because it no longer has the barrel to keep the propellant gas behind it evenly. In a perfect world this would not matter, with a stationary barrel and a single shot. However, because of outside influences such as wind and the tendency to rapid fire while moving, thus creating puffs of propellant rapidly in a different direction than the first, it can negatively affect accuracy. __________________ Team Aggressive UWL Loved by most, feared by many. Aggressive! Kill!

10-21-2007, 01:49 PM	#6 (permalink)
fog Active Member Join Date: May 2007 Location: MELB,FL	this barrel is 4.5 to the 1st porting,so is this NOT a barrel to be bored for freaks ? __________________ FOG = FAT OLD GUY http://www.automags.org/forums/showt...&highlight=FOG http://www.mcarterbrown.com/forums/f...-feedback.html

10-21-2007, 11:13 AM	#2 (permalink)
Mespllingesnogud Active Member Join Date: Jun 2007 Location: USA	velocity could decrease by a small amount, but just adjust the velocity. I have never heard of paint spraying out of the porting onto someone. Accuracy won't change whatsoever. A 1 inch barrel has the same accuracy as a 20 inch barrel. The shorter the louder.

10-21-2007, 02:56 PM	#7 (permalink)
Schmitti Red=Moderator Join Date: Apr 2006 Location: Schen. NY	You need someone to tell you the length of a freak insert. That and you will need to bore from the front and then come up with a thread in/on keeper to keep the freak insert in the barrel E __________________ KD2BLZ

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