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Old March 29, 2013, 07:49 PM   #45
trg42wraglefragle
Senior Member
 
Join Date: April 21, 2008
Location: new zealand
Posts: 836
Yea I knew it'd be high, Scotland's not really know for its lovely sunny beaches and perfect weather is it.

I've put a link to some ballistics using a 165gr berger bullets with both a 300winmag and 308, in a 30mph wind with nothing changing except for the velocity.

308: http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi

300: http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi

You can see that even though there is a big difference in muzzle velocity and 300yards the wind drift is 4" difference which is a bit but is nothing in comparison the 17" of the 300 win mag.

Sure you can probably get a better wind bucking load but 30-40 mph wind is very strong wind and unless you are very good at reading wind or have something like a 50bmg, it will not be an easy shot.

And with the 300 win mag, to miss judge the wind as 30mph when its actually 40mph, your shot will be off by 6 inches.
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