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Old September 30, 2012, 11:43 PM   #12
olddrum1
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Join Date: March 23, 2008
Location: Mid Missouri
Posts: 782
Cutting the barrel off using a run of the mill Walmart load proves little in that its a fast burning powder usally. The burn, i believe, is complete shortly after the shot colum leaves the forcing cones. you get into something like Winchester 570 and then whacking off an inch at a time will become more relevant. Also with some of these powders temperature will also make a difference.
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