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Old February 18, 2012, 09:18 PM   #8
MR-7-45
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Join Date: October 4, 2005
Location: Central Texas
Posts: 70
Barnes bulllets have a different construction, but depending on the bullet may or may not have greater surface friction than other bullets. Barnes bullets labs use real pressure barrels under real conditions. I would only use Barnes reloading data with Barnes bullet. See my post of January 17, 2012 Titled "Conflicting Powder Charge Information". Subsequently, I contacted Barnes to get their information and contacted a lead technician. Their load data comes from tests in their lab up to 60,000 psi.

"Your concerns are legit and your analysis is right on. Since Barnes bullets are longer than bullets that use lead there is more bullet surface in contact with the rifling. That means more friction than with a standard bullet of equal weight. "

Some of the Barnes bullets have grooves cut around the shank that actually reduces the amount of surface in contact with the barrel According to Barnes their construction creates less friction.
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MR-7-45
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I load my own.

Last edited by MR-7-45; February 19, 2012 at 10:24 AM.
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