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Old December 19, 2012, 08:58 PM   #19
Old Grump
Member in memoriam
Join Date: April 9, 2009
Location: Blue River Wisconsin, in
Posts: 3,144
I'm probably ignorant about the subject, but seems to me a thin film of oil in a barrel will have less resistance than one that is bare. That first shot scrapes out the oil, and subsequent shots will hit at a different spot.

"Fouling shot", am I right?
Diameter of the bullet is large enough to permit the lands to engrave the bullet. Oil is not a lubricant in that scenario but an obstruction that must be removed. A high viscosity oil used for lubrication and metal preservation creates a hydraulic action that impedes the first bullet coming out of the oil coated barrel. The faster the bullet the more it is affected.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.
--Daniel Webster--
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