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I understand there is something that I need to know regarding barometric pressures that are used. What is this all about?
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One of the advantages of TRA is that if you check the station pressure option, other fields dissapear to eliminate confusion. At that point you just enter the raw pressure. No altitude to set at 0 ect...Pressure and altitude can easily confuse shooters. When to set altitude to 0' when to enter actual, when to enter sea level pressure, when to enter raw presure etc....TRA helps eliminate these confusions. This is exactly why I designed it this way. Another advantage is the trajectory adjustments for head winds and tail winds whether they are full on 3 or 9 oclock or anything between these and 12 and 6 oclock. Spin drift values are also optional. The latest also allows drops out to 4000 yards with any zero. Another big advantage is being able to adjust your drag model in .001 increments instead of using fixed models such as G1, G5, and G7 ect...This allows shooters to be able to match their real world data much more closely. I have also completed a calculator for use on any handheld that runs excel. Its not as fancy as others but gives as accurate of data as the reloaders archive desk top program. Also it doesnt give you a huge chart. You enter the range to target and it gives you one figure in inches, clicks, MOA's, MILLS and NPR2 bars. In a hunting situation, this is better as it leaves less to be confuse with. A long drop chart is just plain fancy crap hunters dont need. Its not that it cant be done, I started out with a full on drop table and eliminated it for simplicity. Leave the fancy programs for a more calm enviornment. The best part about it is that from here on, it comes free with TRA.
The current trial is still somewhat outdated and shuts down unexpectedly. In about another week or so, a smoother trial will be uploaded with the latest version that includes meters and a host of other improvments. The latest version is already available, just setting it up as a trial is more labor intensive and near complete.
