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Thread: 7 mag vs 300 win mag
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Old 12-15-2010, 07:25 AM
  #9  
Camosteel
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Join Date: Oct 2009
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Originally Posted by bigcountry
That doesn't tell the whole story.

One, a 7mm 160gr accubond has a SD of .283 which trumps a .308" 180gr accubond with SD of .271. Means it penetrates better therorectically.

With a 7mm rem mag with a 160gr accubond launching at 2950fps drops less than a .308" 180gr accubond launching at 2950fps. Both velocities are realistic values.

The .308" 180gr accubond has a BC of .507 and the 7mm 160gr accubond has a bC of .531. Which translates to 2" gain in performance to the 7mm at 500 yards, and 23" at 1000 yards.
Thanks BC, I knew I wasn't taking everything I should into account on this. So what's your call on the 7mm rm vs. 300wm if you were buying a new rifle right now to do what the original poster stated?
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