Nikon BDC Reticle Manual De Instrucciones página 11

Simply shoot three or five shots using your 91.44 m (100 yds) setting at distances until your group size exceeds 25.4 or 30.48 cm (10 or 12 in). Do not be concerned about bullet drop. We just
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want to know how far you and your rifle can hit a target with lethal consistency. Most individuals will find that 365.76 m (400 yds) or slightly more will be the absolute maximum that they can
maintain lethal accuracy.
After determining your maximum lethal range shoot a group at that distance-three or five shots will suffice.
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Mark the center of the group with a large X using your felt marking pen.
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Go back to the firing position and align your scope on the aiming point and note where the X is relative to the accuracy circles. Do not be concerned if the group is not in a particular circle.
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Vary the power setting on the scope to move the closest circle to the center of the group. You might prefer to use the center, top or bottom of an accuracy circle, your choice. You now have a 91.44
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m (100 yds) zero and a maximum down-range zero.
Note the power setting that enables the 457.2 (or 548.64)m (500 (or 600) yds) zero and do not move the magnification ring. You might consider a dab of nail-polish to mark the spot so you can
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return easily.
Move your target to intermediate distances in 91.44 m (100 yds) increments and repeat the firing procedure. Note exactly where your groups form relative to the circles. Do not move the
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magnification ring on the scope. Note the relationship between the center of each group and the circles and make simple notes to describe the correlations.
Consider moving your targets in 45.72 m (50 yds) increments to fine-tune the relationship of the accuracy circles to the actual trajectory of your bullets.
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Keep accurate notes of your shooting. You will require good information when you prepare your drop chart.
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