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If you want the maximum point blank range, the longest yardage at which you can hold in the middle of you target and still hit it, there are many variables. The 2 main thing are the velosity and the B. C. of the bullet. For a varmint rifle you want it so the bullet never goes to but not over 2 1/2 in. above the line of sight and then whem the bullet gets to 2 1/2 in. below the line of sight that is your max. point blank range. For large game they figure 5 in. above and below the line of sight. There are several charts and programs that will figure it for you but you also need to know the height of the center of your over the center of your bore. Most reloading manuals will have a blistic chart in them, but most are for scopes mounted 2 in. over the center of the bore to the center of the scope. Hope this helps clear it up alittle for you.
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Catfish
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