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Long Range Hunting & Shooting
Dope charts - what's your procedure w details
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<blockquote data-quote="CA48" data-source="post: 1088764" data-attributes="member: 21446"><p>Ballistic Programs can be frustrating. For some cartridges I put in the advertised BC and chronoed velocity and they are dead on up to 1000 and past that point it takes a lot of tweaking. Most of the time I have have to put in ridiculous BC values and velocity numbers +or- 100 fps of my actual velocity. Create stepped bc profiles sometimes multiple stepped BC profiles for 1 cartridge to get things to match up. 1 profile from 0-800, another from 800-1000 and another from 1000-1200. Then it can vary past there. I am using Bullet Flight military ver. But would like to try CB 1.0 and applied ballistics. Before you start collecting any dope or trajectory validation always check your zero. And have your inputs as accurate as possible even if your zero was dead on yesterday check it today and make sure 1 click adj. is actually 1/4Moa and if not a lot of programs will let you calibrate for your adj. error. Record the conditions, use consistent form, shoulder to stock pressure, bi-pod load pressure. Recently on my cartridges with longer barrel life I just shoot and record dope every 10 to 50 yards depending on the distance, out to the max range I plan on shooting at and really get to know my rifle. You won't always have this luxery with over bore cartridges with short barrel life and that's when I really try to tweak my ballIstic program and shoot at several ranges then try to match it all up.</p></blockquote><p></p>
[QUOTE="CA48, post: 1088764, member: 21446"] Ballistic Programs can be frustrating. For some cartridges I put in the advertised BC and chronoed velocity and they are dead on up to 1000 and past that point it takes a lot of tweaking. Most of the time I have have to put in ridiculous BC values and velocity numbers +or- 100 fps of my actual velocity. Create stepped bc profiles sometimes multiple stepped BC profiles for 1 cartridge to get things to match up. 1 profile from 0-800, another from 800-1000 and another from 1000-1200. Then it can vary past there. I am using Bullet Flight military ver. But would like to try CB 1.0 and applied ballistics. Before you start collecting any dope or trajectory validation always check your zero. And have your inputs as accurate as possible even if your zero was dead on yesterday check it today and make sure 1 click adj. is actually 1/4Moa and if not a lot of programs will let you calibrate for your adj. error. Record the conditions, use consistent form, shoulder to stock pressure, bi-pod load pressure. Recently on my cartridges with longer barrel life I just shoot and record dope every 10 to 50 yards depending on the distance, out to the max range I plan on shooting at and really get to know my rifle. You won't always have this luxery with over bore cartridges with short barrel life and that's when I really try to tweak my ballIstic program and shoot at several ranges then try to match it all up. [/QUOTE]
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Dope charts - what's your procedure w details
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