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Old October 28, 2012, 08:22 PM   #5
PawPaw
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Join Date: December 24, 2010
Location: Central Louisiana
Posts: 3,137
Yup, two different things. The driving band engages the rifling and is full diameter. The grease groove is that groove that holds the grease. There are normally multiple grease grooves, but generally the driving band is the band near the nose, over the crimp groove, which is also not a grease groove.
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