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					Originally Posted by  Daniel Carter
					 
				 
				When i first loaded the short 10 i used dry 16 ga. wads as a filler and got a confetti of pulverized wad with each shot, a celebration my trap squad called it. Crow hunting the blizzard of fiber would sometimes get behind the glasses and cause problems. Lubed wads and no more problem. 
			
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 Ive witnessed the confetti before but doesnt seem to happen if I place a overshot card under the first fiber wad. I have read some claims that lube from wads will seep down into the powder, however I pulled apart a Winchester load that was probably 40 years old and the lube from the wad had not seeped into the powder. Then again Winchester used a nitro card that had a skirt around the edge of it sealing the powder charge.
Heres a piece of fiber wad I found where you can see the impressions of shot setback.