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ccyg8774 · September 21st, 2012, 13:52

Are you going to colour the BB in some way to monitor the spin of the BB in the barrel? Or just study the "touching" between BB and the barrel?

September 21st, 2012, 13:52	#13
ccyg8774 Trader rating Join Date: Jun 2012 Location: Brampton, ON	Are you going to colour the BB in some way to monitor the spin of the BB in the barrel? Or just study the "touching" between BB and the barrel? __________________