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					Originally Posted by  Harold Lee Pickens
					 
				 
				Bushings often do not drop what is listed for them. I weigh the charge and see then which bushing drops the closest---and then again, it aint rocket science, and in the lower presure mid velocity(<1200fps) loads I shoot, it wouldnt matter that much. 
			
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 The other side of the equation is the other side of the MEC charge bar, they almost universally drop a lighter charge of lead than advertised.  I have never worried about this as a shotgun is not a rifle where precision of everything is critical.
When I selected the 7/8 ounce Red Dot load I wanted from the Alliant data I was using a #29 bushing after weighing powder.  When shooting them there was nothing wrong but I thought the loads were "barking" just a tad.  I simply switched to the #28 bushing went back to shooting and thought there that sounds good. Reloading for a shotgun has some science behind it but it also has some seat of the pants feel to it as well.