Buffered buckshot shells?

It's a plastic filler material called grex. Fills the spaces between the shot pellets.
Denis
 
To elaborate on DPris's post, it acts as a filler to help protect the shot from dings and dents going down the barrel, helping keep the groups tighter because of rounder shot.
 
The buffering does minimize deforming the shot and can give tighter and more uniform patterns . What ever you use always pattern shotgun ammunition !
 
FWIW, I had my 870 riding in my truck loaded with Remington buckshot and also had two 5-pks of Remington buckshot stashed with it. All of the ammunition was several months old.

When I unloaded the 870 to clean it, I found that the crimp on the shells had come loose and the plastic was spilling out.

I checked the ammo that was still in the factory boxes and it was also losing the filler.

So I'm looking for ammo with a better crimp than the Remington.

Anyone else had this problem?

Thanks,

Mike
 
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