when putting in your base load data, and zeroing at 100 or 200y, should you use weather data/DA for the zero and leave it blank or off? and just use the weather/DA info 4 the ballistic info later?
Range Report general question regarding all ballistic apps..
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Re: general question regarding all ballistic apps..
If your zero range is short, like 100 yards/meters, then the 'zero-atmospherics' are not very important because the atmospherics will have little affect on a short range zero. You can leave it blank/disabled.
However if you choose to work from a long range zero, say 600 yards or more, then the atmospheric conditions are a very important part of the zero and must be entered/accounted for.
Personally I use and advise short range (100 yard/meter) zero's for several reasons, the above being a major reason.
-Bryan
If your zero range is short, like 100 yards/meters, then the 'zero-atmospherics' are not very important because the atmospherics will have little affect on a short range zero. You can leave it blank/disabled.
However if you choose to work from a long range zero, say 600 yards or more, then the atmospheric conditions are a very important part of the zero and must be entered/accounted for.
Personally I use and advise short range (100 yard/meter) zero's for several reasons, the above being a major reason.
-Bryan
Re: general question regarding all ballistic apps..
As you go farther out, there will be more drop if conditions create higher air density, e.g. low temp, low altitude, but looking at just one .308 load of mine in JBM, the difference in drop between 20F/29.92 Hg and 80F/23.92 Hg is still less than .3" @ 200.
Another reason I like to zero @ 100 is because wind doesn't have as much effect. I try to zero on days when it's blowing less than 5 mph so I'm not saying you won't get some misleading results @ 100 if it's over that. Once zeroed, get out as far as you can.
As you go farther out, there will be more drop if conditions create higher air density, e.g. low temp, low altitude, but looking at just one .308 load of mine in JBM, the difference in drop between 20F/29.92 Hg and 80F/23.92 Hg is still less than .3" @ 200.
Another reason I like to zero @ 100 is because wind doesn't have as much effect. I try to zero on days when it's blowing less than 5 mph so I'm not saying you won't get some misleading results @ 100 if it's over that. Once zeroed, get out as far as you can.
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