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Old 04-10-2010 | 06:54 PM
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Gm54-120
Giant Nontypical
 
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What are you using for a BC on that bullet? Can not imagine it is to high.... + the BC you have might have been calculated for the velocity expected from 40 cal black powder pistol. Changing the velocity will change the BC also.
http://www.handloads.com/calc/

Sectional Density is roughly .231. I dont use BC since it is fps dependent and often inflated. SD is a constant value only dependent on profile, length but mostly diameter and weight.

Its roughly 14" low and 1387fps/1111fpe@200yd estimated at 700ft above sea level and a 1.5" scope height above the bore center with a 50yd sight in.

Ive had good luck with it and its been very close to POI for me in the past. I usually shave off a little on the SD too.
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