The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Thread Tools Search this Thread
Old December 28, 2019, 11:35 PM   #1
Prof Young
Senior Member
Join Date: August 21, 2007
Posts: 1,747
What is the white stuff.

So I cut open two shotgun shells to show the grandsons how they were constructed. In the 20 ga, regular shell I found what I expected. Shot, wad, powder. In the slug I found the slug, some-kind of white powdery stuff, then a thick wad, a thin plastic wad, and then the gun powder. What is the white stuff?

Life is good?

Prof Young
Prof Young is offline  
Old December 29, 2019, 12:42 AM   #2
Senior Member
Join Date: November 13, 2006
Posts: 6,585
Yeah,life is good.

I'm thinking its probably powdered polyethylene buffer material.

They put buffer powder in premium birdshot/buckshot loads to cushion the shot to keep it round. It flies straighter when its round. Better patterns.

Another use for buffer is about constrictions,such as forcing cones and chokes.

The buffer is there to be compressable. It gets more interesting with hard steel shot.Something has to give. Best its buffer powder and a sleeve around the shot.

I was unaware of buffer powder in slugs,but it makes sense shooting slugs through a choke.
HiBC is offline  
Old December 29, 2019, 12:45 AM   #3
Senior Member
Join Date: December 28, 2009
Location: North Central Illinois
Posts: 2,203
The white powder is buffering that is commonly mixed in with the shot, but I have no idea about it being in a slug shell.
Mike38 is offline  
Old December 29, 2019, 12:45 AM   #4
Senior Member
Join Date: November 26, 2016
Posts: 795
A google search would produce this:
74A95 is offline  
Old December 29, 2019, 02:51 PM   #5
Join Date: March 4, 2005
Location: Ohio
Posts: 17,009
Buffer also is used as a filler to consume extra space. If the slug were too short for the wad, taking up the extra space with buffer would be reasonable to do. If the slug has a hollow base, the buffer might protect the skirt from blowing out too much at the muzzle.
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member and Golden Eagle
Unclenick is offline  
Old December 29, 2019, 11:25 PM   #6
Prof Young
Senior Member
Join Date: August 21, 2007
Posts: 1,747
Thanks and . . .

Thanks, that all makes sense. And yes, unclenick, the slug is hollow so that makes sense too.

So much to learn.

Life is good.
Prof Young
Prof Young is offline  
Old January 6, 2020, 07:56 PM   #7
Senior Member
Join Date: May 7, 2006
Location: Alabama
Posts: 261
Remington 20 gauge and .410 bore rifled slugs use a thick layer of buffer between the slug and wad column.

This can be readily seen through the translucent yellow plastic of the 20 gauge rifled slug round:

And through the translucent green plastic of the .410 bore rifled slug round:

Last edited by RMcL; January 6, 2020 at 08:08 PM.
RMcL is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 03:27 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2018 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.04885 seconds with 10 queries