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The Basics, Starting Out
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<blockquote data-quote="J E Custom" data-source="post: 1479176" data-attributes="member: 2736"><p>The reason I mentioned Bullet BCs was your desire to make the ballistic program match the actual drop table. If you adjust the powder to change the velocity The drop may match the zero at some distance so you are adjusting the drop to match the ballistic program. the problem is that it will not match at all distances because you have changed the load to match the program.</p><p></p><p>What I understood you wanted was for the program to match the actual performance of your bullet. If you change the program parameters until it matches the actual drop tables, it will be very close to the actual at all distances. If you still cant get it to match try adjusting the velocity and the bullet BC,s until you get it to match the actual drop. Both numbers may be off. </p><p></p><p>Be sure and use the G7 numbers because the old G1 numbers are not as accurate and most ballistic programs are based on the new model</p><p>G7 bullets. But Don't change your load to match the program if you want true long range accuracy from your program.</p><p></p><p>The only other thing that could cause this problem is inaccuracy in the fields of input to the program so be sure that you are putting in good data.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1479176, member: 2736"] The reason I mentioned Bullet BCs was your desire to make the ballistic program match the actual drop table. If you adjust the powder to change the velocity The drop may match the zero at some distance so you are adjusting the drop to match the ballistic program. the problem is that it will not match at all distances because you have changed the load to match the program. What I understood you wanted was for the program to match the actual performance of your bullet. If you change the program parameters until it matches the actual drop tables, it will be very close to the actual at all distances. If you still cant get it to match try adjusting the velocity and the bullet BC,s until you get it to match the actual drop. Both numbers may be off. Be sure and use the G7 numbers because the old G1 numbers are not as accurate and most ballistic programs are based on the new model G7 bullets. But Don't change your load to match the program if you want true long range accuracy from your program. The only other thing that could cause this problem is inaccuracy in the fields of input to the program so be sure that you are putting in good data. J E CUSTOM [/QUOTE]
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