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Bart B. · January 28, 2013, 10:21 AM

Kraig, I think Hatcher's drift data was based on the 150-gr. spitzer bullet; I've seen that info before and it is correct. The 173-gr FMJBT bullet was used for data derived in the 1930's. I should have specified the bullet as one's gonna spin faster than the other when it leaves the barrel.

January 28, 2013, 10:21 AM	#11
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	Kraig, I think Hatcher's drift data was based on the 150-gr. spitzer bullet; I've seen that info before and it is correct. The 173-gr FMJBT bullet was used for data derived in the 1930's. I should have specified the bullet as one's gonna spin faster than the other when it leaves the barrel.