bullet stability and twist rates
http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
ballistic calculator
http://www.hornady.com/ballistics-resource/ballistics-calculator
these calculators can be really handy
http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
ballistic calculator
http://www.hornady.com/ballistics-resource/ballistics-calculator
these calculators can be really handy
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