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1/25/2018 7:38:29 AM
Posted: 7/23/2003 4:51:37 PM EST
To use it properly, i need ball coeff for 60gr Vmax, 69gr sierra and 55gr q3131a. Can anyone explain how i am supposed to know this, and what they are would be nice.I mistakenly have been putting caliber 223in that box,and luckily with a 50yd sight in ,i have had no problem holding dead on out to 250yds ,hitting the plates thinking i had used the ballistic chart correctly and thinking i new the correct bullet drop at the various distances.
Link Posted: 7/24/2003 12:29:29 AM EST
[Last Edit: 7/24/2003 12:31:42 AM EST by Bollocks]
Hi Girard, You can find most bc's on the manutacturers' websites: 60 VMAX = .256 55 FMJ = .272 69 MK = .301 [url]http://www.sierrabullets.com/bullets/index.cfm?fuseaction=Ballistic[/url] [url]https://www.hornady.com/cgi-bin/web_store.cgi?page=bc.html&cart_id=1030724.042800[/url] Greetings from Holland, Bollocks
Link Posted: 7/24/2003 2:06:33 PM EST
Bollocks,thanks very much.
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