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<  16ga. Ammunition & Reloading  ~  SG16 vs SG16S wads
brent
PostPosted: Thu Jan 25, 2018 8:21 pm  Reply with quote



Joined: 02 Oct 2014
Posts: 45
Location: Iowa

What is the difference between SG16 and SG16S wads?

Its not obvious, that's for sure.
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robp
PostPosted: Thu Jan 25, 2018 8:41 pm  Reply with quote
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its in the base wad. One has a bunch of little fingers making it take up space.
the other has ridges on the inside edge adding more volume
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brent
PostPosted: Thu Jan 25, 2018 8:44 pm  Reply with quote



Joined: 02 Oct 2014
Posts: 45
Location: Iowa

the SG16s have little fingers. Would that increase or decrease pressure, all else being equal? What other effect would it have?
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robp
PostPosted: Thu Jan 25, 2018 8:52 pm  Reply with quote
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Not sure but I think it only effects the volume
the fingers take up more space
call bpi and ask
I interchange them according to shot size,larger shot take up more volume for a given weight
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brent
PostPosted: Thu Jan 25, 2018 8:54 pm  Reply with quote



Joined: 02 Oct 2014
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Location: Iowa

But those fingers are in the base of the wad. That wouldn't affect lead volume -just powder space. I'm not following you.
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putz463
PostPosted: Fri Jan 26, 2018 2:53 am  Reply with quote
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With the crush sections essentially the same....

The SG16S has less fingers in the powder cup so the wad settles lower in the powder allowing more headroom for lead All Else Being Equal.

http://www.ballisticproducts.com/SG16S-Sporting-16ga-Short-wads-250_bag/productinfo/072SG16S/

The SG16 has more fingers in the powder cup so the wad sits higher on the powder allowing less headroom for lead AEBE.

http://www.ballisticproducts.com/SG16-Sporting-16ga-wads-250_bag/productinfo/072SG16/

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Dogchaser37
PostPosted: Fri Jan 26, 2018 10:15 am  Reply with quote
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It actually doesn't change the chamber pressure much if at all. What does get affected is the wad column height.


Not a lot but enough to sometimes make the difference between a flat crimp and a concave or convex crimp depending on the load.

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Little Creek
PostPosted: Sat Jan 27, 2018 8:53 am  Reply with quote
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I have used SG 16S in 2-1/2" shells, sometimes with 1 ounce of shot. The shorter wad column allows a better crimp.
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Ohio Wirehair
PostPosted: Sat Jan 27, 2018 5:08 pm  Reply with quote



Joined: 24 Jul 2016
Posts: 282
Location: Ohio

It's all about stack height. The SG16S sits lower hence more room for shot. All those little fingers hold the SG16 higher making it a ideal 7/8 oz wad. I use it in almost all my target loads.
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brent
PostPosted: Sat Jan 27, 2018 5:21 pm  Reply with quote



Joined: 02 Oct 2014
Posts: 45
Location: Iowa

The SG16 wad in Iowa must be shorter then. In my 2.5" shells it is too short with 1 oz loads to be honest. I upped to 1.14 oz loads and it's just about perfect.
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Ohio Wirehair
PostPosted: Sat Jan 27, 2018 7:31 pm  Reply with quote



Joined: 24 Jul 2016
Posts: 282
Location: Ohio

That's wonderful,You should notify BPI of your findings. I'm sure they would be interested. Perhaps they'll do a pressure test to see what that extra 1/4 oz of shot does in a 1oz recipe.
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brent
PostPosted: Sat Jan 27, 2018 7:34 pm  Reply with quote



Joined: 02 Oct 2014
Posts: 45
Location: Iowa

It's a 1 1/8 oz recipe and 1.14 is 0.015 oz in excess of 1 1/8.
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fn16ga
PostPosted: Sun Jan 28, 2018 3:57 am  Reply with quote
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brent wrote:
The SG16 wad in Iowa must be shorter then. In my 2.5" shells it is too short with 1 oz loads to be honest. I upped to 1.14 oz loads and it's just about perfect.


could you share the specs of this load .
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Dogchaser37
PostPosted: Sun Jan 28, 2018 6:32 am  Reply with quote
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Brent,

Something is wrong, I load 1 oz. in a 2 3/4 hulls with that wad with no trouble. The loads for doing this have been around and been used for years. At least 25 years.

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brent
PostPosted: Sun Jan 28, 2018 7:07 am  Reply with quote



Joined: 02 Oct 2014
Posts: 45
Location: Iowa

Dogchaser37 wrote:
Brent,

Something is wrong, I load 1 oz. in a 2 3/4 hulls with that wad with no trouble. The loads for doing this have been around and been used for years. At least 25 years.


I don't know. I've only done my 2.5" cases with it. It is the only 16 I have. Normally, I have loaded with black powder.
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