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5/12/2010 12:43:25 PM EDT
Does anyone know if the scattergun technologies green hi-vis follower will reduce capacity?  A review of the S&J hi-vis follower stated that the tail on that follower reduced capacity by one shell and I was wondering if that was the case with the scattergun technologies model (if that is even true that is..).  

Also, is their extended mag spring the correct length for a factory installed magazine extension?
5/12/2010 1:03:26 PM EDT
[#1]
Mine did.  I put it in the trash.  Used a Nordic follower instead.
5/12/2010 1:17:14 PM EDT
[#2]
Quoted:
Mine did.  I put it in the trash.  Used a Nordic follower instead.



Did you get the Teflon coated Nordic follower,,,it kinda look's like a barrel. How do you like it.
5/12/2010 1:23:09 PM EDT
[#3]
Quoted:
Mine did.  I put it in the trash.  Used a Nordic follower instead.


That is a shame.  I bought it on impulse from brownells in the spring/follower upgrade pack.  I wonder if I can return it and exchange it for a vang comp follower instead.  Their follower is the cup (stock) style and shouldn't take up any extra space.  

Not sure if I need a extra power spring though...  I have an 870 tactical with GRS which is based on the express model.
5/12/2010 1:59:37 PM EDT
[#4]
Quoted:
Quoted:
Mine did.  I put it in the trash.  Used a Nordic follower instead.



Did you get the Teflon coated Nordic follower,,,it kinda look's like a barrel. How do you like it.


Yeh, it's a cup shape ot thimble, like the stock follower, but longer.  I'd say I like it, 2 years and never a follower problem. Mine are an older generation, without teflon I believe. They made a model specific change i think, though I don't know what gun it was for, 930 or SLP probably.   I'll be picking up a few more sooner or later,for newer guns that didn't get them.
5/12/2010 2:13:17 PM EDT
[#5]
It's not the tail of the follower that reduces the capacity, it's the 1/2" thick solid end.  It takes away 1/2" of space. With a hollow follower the spring fits inside and no space is lost.

The spring needs about 2" to 2.5" of room to compress. The tail isn't that long.


GC


5/12/2010 9:57:43 PM EDT
[#6]
Quoted:
It's not the tail of the follower that reduces the capacity, it's the 1/2" thick solid end.  It takes away 1/2" of space. With a hollow follower the spring fits inside and no space is lost.

The spring needs about 2" to 2.5" of room to compress. The tail isn't that long.


GC




That makes sense.   Anyone have experience with the Vang Comp follower?  Looks like a solid unit... would prefer a high vis color but since its stainless I guess there isn't much they can do outside of coating it with some sort of paint.
5/13/2010 3:21:21 AM EDT
[#7]
I have Scattergun followers in almost all of my 870s and have never noticed a reduction in round capacity except with Wolf which is overly long for a 2-3/4" shell.

5/13/2010 5:26:24 AM EDT
[#8]
I have Scattergun followers in almost all of my 870s and have never noticed a reduction in round capacity except with Wolf which is overly long for a 2-3/4" shell.


You probably have a 870 with a 6+1 factory extension. There is 2.5" of basically unused space because of the indented ring for the mag clamp screw.  The ring stops the follower from going past it.  That 2.5" gives plenty of room for the spring to compress. Even with a after market 6+1 extension you have more tube space to work with than a 18.5" barrel 7+1 shotgun.

You will see a loss of a round in other 18.5" barrel 7+1 and 20" barrel 8+1 shotguns that uses a full length mag tube or tube extension.


GC
5/13/2010 7:59:57 AM EDT
[#9]
That MAX100 is a plethora of information, isn't he? Thanks MAX for the great explanation.

jonblack
5/13/2010 8:49:34 AM EDT
[#10]
It reduced capacity in my 18" 870s with +2 extensions using Federal 00 Buckshot.

It doesn't reduce capacity in my 20" 870 with a +3 extension using Remington LR 00 buckshot.

IIRC Federal, Wolf, and S&B 00 buckshot is all slightly longer than standard 2 3/4" 00 buckshot.
5/13/2010 9:09:09 AM EDT
[#11]
Quoted:

IIRC Federal, Wolf, and S&B 00 buckshot is all slightly longer than standard 2 3/4" 00 buckshot.


They're roll crimped shells.  Estate is also rolled.  The 2.75" is the OAL of a fired hull.  I lose 1 round capacity when using rolled shells also.  Federal to my knowledge is not roll crimped, my 34 pellet #4 buck, and the 27 pellet I used up was a folded crimp, and was on the low end of the length scale.
5/13/2010 10:17:52 AM EDT
[#12]
Quoted:
I have Scattergun followers in almost all of my 870s and have never noticed a reduction in round capacity except with Wolf which is overly long for a 2-3/4" shell.


You probably have a 870 with a 6+1 factory extension. There is 2.5" of basically unused space because of the indented ring for the mag clamp screw.  The ring stops the follower from going past it.  That 2.5" gives plenty of room for the spring to compress. Even with a after market 6+1 extension you have more tube space to work with than a 18.5" barrel 7+1 shotgun.

You will see a loss of a round in other 18.5" barrel 7+1 and 20" barrel 8+1 shotguns that uses a full length mag tube or tube extension.


GC


Max100 Thank you for the very clear explanation.   I did a bit of thinking after I read your post and it all started to make sense to me.  My shotgun is a remington 870 tactical (model  81198) which does indeed have the 6+1 capacity due to the factory extension.  I did a bit of playing around and found something interesting which is that with the scattergun tech follower I actually gain a tiny bit of space apparently (see pictures).  

My next question though is if I have the correct length spring which although the package and brownells indicates is correct the length compared to stock makes me think otherwise(see pictures).  It should be noted that the scattergun tech spring is shorter but is wider.  Also, the scattergun techn (WOLFF) spring doesn't seem to be any harder to press down.  Ideas?  



Stock Follower (note the number 8 on shell)


Scattergun Tech Follower (number 8 is inside tube)










Scattergun Tech Site:

http://shopwilsoncombat.com/Spring-Follower-Kit-Extension-Tube-12-Gauge/productinfo/SGSFK-EX/

Brownells:

http://www.brownells.com/.aspx/pid=12523/Product/MAGAZINE_SPRING_PERFORMANCE_PACKAGE
5/13/2010 10:35:47 AM EDT
[#13]
The factory follower is a little longer than the solid end of the Wilson follower that accounts for the extra space. The spring strength is determined by the thickness of the wire the distance between the coils.


The correct length for a Wolff extra power spring and most springs  is about 8" to 10" longer than the end of the mag tube or tube extension if you have one installed.

The factory tube extension could get 7+1 capacity if it was a straight tube design without the narrow end and indented ring. The reason for the design was an attempt to install bayonet on the 870. It wasn't strong enough like the 590A1 with separate barrel ring with bayo lug..  


GC

5/13/2010 11:44:07 AM EDT
[#14]
Hmm well since the Scattergun Tech spring is only 4in longer than the mag tube I'll stick with the stock remington spring for now.  Using the follower though..
5/13/2010 12:11:42 PM EDT
[#15]
Hmm well since the Scattergun Tech spring is only 4in longer than the mag tube I'll stick with the stock remington spring for now. Using the follower though..


The mag spring that comes in the Express or Express Tactical with a tube extension is a HQ spring.  It's the same spring that comes in the 870P with a tube extension.  


GC
5/13/2010 1:13:06 PM EDT
[#16]
Quoted:
Hmm well since the Scattergun Tech spring is only 4in longer than the mag tube I'll stick with the stock remington spring for now. Using the follower though..


The mag spring that comes in the Express or Express Tactical with a tube extension is a HQ spring.  It's the same spring that comes in the 870P with a tube extension.  


GC


Wow... you are just full of awesome info!  Thanks a bunch!
5/13/2010 5:07:46 PM EDT
[#17]
Quoted:
I have Scattergun followers in almost all of my 870s and have never noticed a reduction in round capacity except with Wolf which is overly long for a 2-3/4" shell.


You probably have a 870 with a 6+1 factory extension. There is 2.5" of basically unused space because of the indented ring for the mag clamp screw.  The ring stops the follower from going past it.  That 2.5" gives plenty of room for the spring to compress. Even with a after market 6+1 extension you have more tube space to work with than a 18.5" barrel 7+1 shotgun.

You will see a loss of a round in other 18.5" barrel 7+1 and 20" barrel 8+1 shotguns that uses a full length mag tube or tube extension.


GC


Actually it was a Wilson +1 with Wolf ammo in the one instance that I noticed a loss of a round due to the Wilson/Scattergun Follower.

I have never noticed this with the Wilson +2, Nordic +2, or Factory +2 extensions on my other 870s.
5/14/2010 5:14:45 AM EDT
[#18]
wolf ammo is longer then regular due to it not being crimped on the end...it will take away 1 shell from the capacity...
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