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  #241  
Old 02-15-2024, 6:36 AM
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Is there a real difference between the regular VCS barrel mod and the VCS FliteControl Optimized barrel mod?

I recently picked up a few cases of low recoil 8-pellet Federal FliteControl 00 buckshot and I plan to use it the majority of the time through my shotguns, and that's what will stay loaded for HD. However, I also want to use up my low recoil Fiocchi 00 buchshot and Winchester Super X 00 buckshot at the range for practice through the same shotguns, along with low recoil Federal TruBall slugs, Fiocchi rifled slugs, and Remington rifled slugs.

Is the VCS FliteControl Optimized barrel mod only intended to use Federal FliteControl shells and nothing else through your gun? I'm not really concerned about patterning with the Fiocchi and Winchester buckshot, but I don't want to damage or put any undue stress through the barrel with non-FliteControl shells.
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  #242  
Old 02-15-2024, 6:47 AM
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Quote:
Originally Posted by Ari_d_sparki View Post
This is interesting. The shotgun I dropped off in Vegas and recently got back is shooting very well.
It is a Winchester 20ga Defender made in the US. So it has a 18" barrel and 6 round tube.
This last Sunday I did two rounds of 16 yard trap using 1300fps steel #7 shot. It is shooting so tight that I'm going to have to start at 17 or 18 yards.
Recoil with 3" #2 steel is minimal.
While this is my 5th Vang Comp barrel, it is only my second 20 ga.
The benefit of their work is that you get tight patterns and reduced recoil regardless of ammo.
My Vang Comp 870 has less recoil than a Versa Max Tactical Competition with an extended ported choke that I sold. I loved that shotgun but it recoiled more and was less useful than my Vang Comps.
Sounds pretty awesome, you're making me thinking about doing something like this.
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  #243  
Old 02-15-2024, 6:53 AM
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I have a few questions for those of you in the know...


Does the barrel need to be a fixed choke barrel?

Does the backbore open up the ID of the barrel (12 gauge) form the forward end of the forcing cone forward to something like .729 or .730?

Has anyone here had this done to a barrel that has choke tubes?

If it can be done on a barrel with choke tubes, is there less of a benefit of having the work done?

I didn't see anything on their website regarding barrels with removable chokes.
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  #244  
Old 02-16-2024, 5:40 AM
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I thought HD barrels were for the most part cylinder. Would screw in chokes mess with the process?
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  #245  
Old 02-16-2024, 6:38 AM
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Quote:
Originally Posted by shovelon View Post
I thought HD barrels were for the most part cylinder. Would screw in chokes mess with the process?
That's why I'm asking. Currently, I don't really have a shotgun barrel that I'd like to try this out on.

But, if I come across the right barrel or shotgun, I might pick it up.

Just want to make sure I don't acquire something that won't work.
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  #246  
Old 02-16-2024, 8:18 AM
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Quote:
Originally Posted by BOBGBA View Post
That's why I'm asking. Currently, I don't really have a shotgun barrel that I'd like to try this out on.

But, if I come across the right barrel or shotgun, I might pick it up.

Just want to make sure I don't acquire something that won't work.
The old 870 barrels that come with the 2.75in receivers are to thin for the process
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  #247  
Old 02-16-2024, 9:36 AM
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Quote:
Originally Posted by SDM44 View Post
Is there a real difference between the regular VCS barrel mod and the VCS FliteControl Optimized barrel mod?

I recently picked up a few cases of low recoil 8-pellet Federal FliteControl 00 buckshot and I plan to use it the majority of the time through my shotguns, and that's what will stay loaded for HD. However, I also want to use up my low recoil Fiocchi 00 buchshot and Winchester Super X 00 buckshot at the range for practice through the same shotguns, along with low recoil Federal TruBall slugs, Fiocchi rifled slugs, and Remington rifled slugs.

Is the VCS FliteControl Optimized barrel mod only intended to use Federal FliteControl shells and nothing else through your gun? I'm not really concerned about patterning with the Fiocchi and Winchester buckshot, but I don't want to damage or put any undue stress through the barrel with non-FliteControl shells.
Don't worry about it, it will shoot anything better than it did before.

Randy
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  #248  
Old 02-16-2024, 9:54 AM
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BOBGBA: I have several barrels with various degrees of Vang Comping done.

2 barrels have the whole thing done IE: forcing cone, back boring, porting, and then the forward 2" of the barrels are tapered back down to .729. The constriction on the muzzle is between IC and Mod Choke IE: .015 choke or .715

I have another barrel that has the forcing cone done, no Back Bore, no Ports and then threaded for Rem Chokes. I got it done that way because I use a Rifled Choke Tube in that gun as well as IC and MOD choke tubes for 3 gun shoots. I shoot slugs in that barrel so I didn't want the slug flopping around in an enlarged bore before it got to the Rifled Choke Tube.. I'm going to Port that Barrel, and would have got it done, but the work was done while I stood there and watched them do it, and I forgot to tell them to Port it.!

That barrel works well for what I do with it.

Keep in mind that the barrels with the full Treatment shoot everything well including slugs and here's a group I shot at Front Sight at 50 yards with my 20" gun. They shoot Buckshot exceptionally well, and both of mine do <7" at 25 yards !

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Last edited by W.R.Buchanan; 02-16-2024 at 9:58 AM..
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  #249  
Old 02-17-2024, 6:57 PM
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Man... I been thinking of going through Vang also.. but I have a local Smith that will do the porting for me. I'm thinking more back on the barrel, since my 18.5 is threaded for choke and it has the heat shield. Somewhere around where the barrel and mag tube meets at the distance 🤔
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  #250  
Old 02-24-2024, 2:17 PM
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M1X as long as the Porting is behind the Choke of the barrel it will be fine However it needs to start just behind the Choke Tube Threads not much farther.

The point of the Porting is to relieve pressure just before the pay load goes thru the choke. It essentially is coasting thru the Choke, as opposed to being jammed into the choke. That way the pattern stays tight.

Randy
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  #251  
Old 02-26-2024, 6:46 PM
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Quote:
Originally Posted by BOBGBA View Post
That's why I'm asking. Currently, I don't really have a shotgun barrel that I'd like to try this out on.

But, if I come across the right barrel or shotgun, I might pick it up.

Just want to make sure I don't acquire something that won't work.
Quote:
Originally Posted by eddy 600 View Post
The old 870 barrels that come with the 2.75in receivers are to thin for the process
Interesting. I wouldn't have thought that.

I have a Garcia era Beretta O/U that barrels were too thin for most choke tubes. Briley put their thinwall chokes in OK.

I wanna say 0.805 was minimum OD for tru-choke.
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  #252  
Old 02-26-2024, 7:52 PM
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Quote:
Originally Posted by JagerDog View Post
Interesting. I wouldn't have thought that.

I have a Garcia era Beretta O/U that barrels were too thin for most choke tubes. Briley put their thinwall chokes in OK.

I wanna say 0.805 was minimum OD for tru-choke.
Looks like you are spot on.

The only place I've seen (or maybe the only place I remember seeing) the barrel diameter specs for choke tube installation:

Bob Day's website https://www.americhoke.com/

Picture below is from his site.

Min barrel diameter for choke tubes from americhoke.JPG
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  #253  
Old 02-28-2024, 11:00 AM
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Quote:
Originally Posted by BOBGBA View Post
Looks like you are spot on.

The only place I've seen (or maybe the only place I remember seeing) the barrel diameter specs for choke tube installation:

Bob Day's website https://www.americhoke.com/

Picture below is from his site.

Attachment 1218069
Same or similar to what I found scouring the interweb a decade plus ago or so. My Beretta BL2 was like 0.802.

I don't know the specs on Briley thinwall vs, Truchoke thinwall, but they did it after confirming via phone that they could. I did speak to a truchoke vendor (may have been Bob Day) and they said it would imprint the threads on the OD.

But these were exceptionally thin barrels compared to most. I'd be surprised that any Remington would be as thin.

It did turn my BL2 from M/F that really shot F/XF into a useful field gun.
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  #254  
Old 03-01-2024, 12:26 PM
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Update with my Vangcomp turn around time. Please keep in mind that this is just for the Vangcomp Porting job only, nothing else.

02/08/24 - shipped barrel to vangcomp (dropped off to UPS)
02/09/24 - barrel delivered to Vangcomp
02/12/24 - order updated with notes that barrel has been received.
02/29/24 - Notifcation from UPS of incoming shipment from Vangcomp.
Later that evening an order update from Vangcomp of Barrel port job completed and shipped via UPS.

03/01/24 - Package delivered notification at my property and it was from Vangcomp. My ported barrel "only" and the VangComp detachable side shell carrier kit.

Total turnaround time was under 30 days from their estimated 30-60 days.



Now to get my 590a1 cerakoted.
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Last edited by DProm; 03-01-2024 at 5:37 PM.. Reason: Date typo
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  #255  
Old 03-01-2024, 5:24 PM
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Something is off with your dates. But if it's only 30 days for a port job I may send them my barrel...
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  #256  
Old 03-01-2024, 5:34 PM
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Something is off with your dates. But if it's only 30 days for a port job I may send them my barrel...
Crap thanks for catching that! Sorry I was half asleep waking up from a 22hr shift so I was sleepy but excited for the barrel! Corrected the date on when it was shipped to vangcomp!
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  #257  
Old 03-10-2024, 6:19 AM
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Quote:
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.
Wow! That is a lot of porting holes. Like 60? Does the lengthened forcing cone lead right into the ports? Is there a reduction of FPS?
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  #258  
Old 03-11-2024, 7:55 AM
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Hans said that everything likes to fart!

When a wad leaves the muzzle, the gases move past the wad and shot at the muzzle.

The gas blowing last the wad can be inconsistent and move the wad and shot slightly.

This opens up the pattern and does it differently each time.

The ports allow the shotgun to bleed gasses out of the ports so the remaining gas does not disturb the wad and shot as it leaves the muzzle.



Mind you I heard this back in the late 90s so I might not have it spot on.


Long way of explaining that the ports on a shorter barrel shotgun (14-19") serve a different purpose than the ports on a rifle.

Rifle is high pressure and bullet is stabilized by spin so ports and brakes limit rise and recoil.



Ports on shotgun do more for a stable wad and shot column leaving the barrel than they do for muzzle rise.
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  #259  
Old 03-11-2024, 4:40 PM
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Velocity

Yes back boring will cause a very small drop in fps


It would be nice to have some real world testing but it probably less than 50 FPS- before Vang and after.
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Old 03-11-2024, 4:43 PM
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Randy

Did you ever chrono a load before and after?
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  #261  
Old 03-11-2024, 4:46 PM
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DIY porting jig

https://www.brownells.com/tools-clea...l-porting-jig/
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  #262  
Old 03-14-2024, 3:11 PM
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So backboring reduces recoil, shot deformation, and velocity. https://www.chuckhawks.com/backboring_does_not_work.htm

The reasoning in the upper article makes sense.
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  #263  
Old 03-17-2024, 11:37 AM
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Finally got my 590 back from cerakoting and put together. Took it out yesterday for some clay and target shooting.

First initial impressions was just... wow. I'm loving this more than the first day I brought it home and the first time I shot it. Definitely a difference! Don't ask me about technical specs stuff or chrono.... I just like to shoot that's all.

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Old 03-18-2024, 8:59 AM
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Looking good!!
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  #265  
Old 03-22-2024, 11:13 AM
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Originally Posted by shovelon View Post
So backboring reduces recoil, shot deformation, and velocity. https://www.chuckhawks.com/backboring_does_not_work.htm

The reasoning in the upper article makes sense.
However it is not the end all. Back Boring doesn't necessarily Reduce Velocity.

In fact it reduces the amount of Drag on the Shot Cup and Payload which increases Velocity.

The lengthened Forcing Cone increases the time it takes to transition from the chamber to the bore, lengthening the Impulse time. Perceived Recoil is reduced

My new Citori CXS32 has a .740 bore, and I have to run Cyl Bore chokes to get Skeet Patterns. The barrels on that gun are not ported, but I wish they were.

The Porting relieves the pressure behind the payload so it effectively "Coasts" thru the choke, which causes less Shot Deformation and also reduces Recoil.

All of these things together make the gun more pleasurable to shoot.

I shot Skeet yesterday and every shotgun there had porting by my .410

Didn't note any elevated noise from those ported barrels.

Then, I went over to the Rifle Line and did notice the effects of muzzle brakes!

Randy
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