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Old October 28, 2012, 08:51 AM   #1
Hal
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Grease groove or driving band?

Which term do y'all prefer to use?
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Old October 28, 2012, 09:50 AM   #2
dahermit
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They are not the same thing.
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Old October 28, 2012, 07:01 PM   #3
WIL TERRY
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BOTH. They are two different things.
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Old October 28, 2012, 07:57 PM   #4
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A driving band is not a grease groove.

http://en.wikipedia.org/wiki/Driving_band
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Old October 28, 2012, 08:22 PM   #5
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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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Old October 28, 2012, 08:30 PM   #6
jmortimer
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I may be mistaken, but aren't they the same on Lee Precision Tumble Lube bullets?
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Old October 28, 2012, 08:46 PM   #7
Sport45
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Same area of the bullet, but two different things. The driving bands are the raised areas that engage the rifling. The grease grooves are the sunken areas that hold lube.
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Old October 28, 2012, 10:58 PM   #8
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Some folks just don't seem to getting the concept that the grease grooves are the things BETWEEN the driving bands.

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Old October 28, 2012, 11:04 PM   #9
Marco Califo
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./\
| |
[ ] <--------Driving Band
] [<----Grease Groove
[ ]<--------Driving Band
] [ <----Grease Groove
[=]<--------Driving Band

^
||
Bullet

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Old October 29, 2012, 04:29 AM   #10
Hal
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Yow - what happened to my mind??
My old brain went on vacation for some reason.

Sorry - I have no idea where my mind was.
They are of course, two different things.
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Old October 30, 2012, 10:48 AM   #11
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Hal, don't feel bad. I did the same thing yesterday when I asked my daughter if her laptop had a webcam. This question came after we had been using Skype since she got her new laptop a year ago.
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