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At what range does the 6x45 exceed 5.56 in performance? I've only seen data to 300 yards.

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At what range does the 6x45 exceed 5.56 in performance? I've only seen data to 300 yards.

From muzzle to what ever distance you shoot with the right bullets..

 

Greg

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Sorry, I should have been more specific. I meant in the higher BC bullets. Say, 95 gr SMK vs 77 gr SMK in 5.56.

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Sorry, I should have been more specific. I meant in the higher BC bullets. Say, 95 gr SMK vs 77 gr SMK in 5.56.

 

You can run the numbers through JBM based on your local conditions. 95 SMK is around 0.490 and the 77 SMK is right on 0.372. Obviosly your anticipated launch speeds will control this.

 

Greg

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I'm not familliar with JBM. What is this?

 

JBM Ballistics offers free ballistic calculators and other resources.

Here's the link;

 

http://www.jbmballistics.com

 

Glenn

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More darn tables and reference material than any place on the net that I have seen or used short of my brain.

 

Greg

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