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Posted: 8/15/2011 3:24:07 PM EDT
| The m223 is calibrated for 55g bullet but want to use 65g bullets, I dont want to buy another scope, the turrent is calibrated I wonder if I can buy a windage knob and replace th elevation turrent? |
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Use this and enter in the appropriate information for the round the scope is calibrated for. Save that data. Then enter the data for 65 gr. Note the difference in trajectory. Then adjust the "sight in at" with the 65gr data until you reach a "close enough" to the 55gr throughout the trajectory curve. Then sight in at 100 yards at whatever the 65gr says. For example if you found the trajectory of the 65gr to be close enough to the 55gr with a 215 yard zero, then look at the 100 yard trajectory. It will say something like +1.67 (i'm making up these numbers) so then sight in at 100 yards with the 65 gr 1.67" high and that will put you close enough with the calibrations of the scope. Using that calculator I suggest using "intervals" of 50 yards and "max range" of 500.
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