Re: Introducing "Shooter", ballistics for Android!
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rafael</div><div class="ubbcode-body">Which features are not working for you? </div></div>
First, I'm not complaining.
No bullet library (premium version maybe?). The automatic atmosphere doesn't seem to work on my Eris Droid. No GPS dish/logo when I start it up, and can't seem to get it to come up--not the end of the world though. I updated it 5 days ago. Is this an Android 2.0 dependent feature? The inclinometer works just fine. (edit: nevermind, I figured it out. Need to enable it under preferences. Just need to play with it a bit more).
I got to take it out this afternoon and put it through its paces. Worked well for the most part, but I did notice some odd findings. These may just be due to my inexperience at field shooting. Anyways, here's what happened:
I started off at 738yd, measured with my Leica CRF 1200. I had previously calibrated my Kestrel 3500 at home about 30 min before, (but this was inside--could this have introduced some error?). Anyway, 738yd, temp 66F, Rel. Hum. 16.5%, Pressure 29.73 (this came from the "baro" function on my Kestrel--this is station pressure, right?), wind was ranging 7-13mph at about 10:00 direction, so I used 10mph ave for this. Solution gave me 19.9moa elev. and 5.1 windage. Dialed 19.5moa elev. and 5moa windage in and 1st shot missed high and right. Dialed down to 19moa elev. and up to 6moa wind and 2nd shot hit steel on right edge of target. Gave 1/2moa more windage and hit the left edge of the target, so backed it to 6moa. Now I figure the windage error is probably my bad. I had measured the wind at the target and at my shooting location, so I'm not too upset about this. Wind reading is an art, even with fancy instruments.
What did surprise me though was the elevation. It seemed to read 1moa more elevation than I needed. I compared the numbers to my drop chart from Sierra Infinity Suite. These showed 18.8moa at 725yd and 19.9moa at 750yd, so just a bit less elevation from Sierra.
My target:
I backed up to 1020yd, and my solution showed 34.9moa elev and 5.6moa wind. From the last experience, I dialed in 34moa elev and 5.5moa wind. 1st shot was a miss, but it was dark enough now I couldn't tell where it was hitting. 2nd shot was a hit on the upper edge of the target. Shot a few more rounds but they were misses too. My Sierra drop table called for 34.1moa @ 1025yd and also agreed on 5.6moa wind.
Then before it got too dark to see anything, I choked up to 300yd. Your table called for 4moa elev and 1.3moa wind. The wind had died just a bit from the last station (1020yd), so I only dialed 1moa wind, but kept the 4moa elev. This produced 5 center hits on the target at my POA.
Everything seemed to work well. I used the inclinometer to calculate my shooting angle at 1020yd (12 degrees) I really like the timer feature here. I tried editing my ammo data, and this feature works nicely as well (I had both BC numbers from the Sierra reloading manual entered initially for the different velocity ranges, but then edited out the lower number but it didn't seem to make much difference). Not sure why there was the 1moa difference between this program and the Sierra at longer distances. One thing I can say is that I need more trigger time. It felt good to scratch that itchy trigger finger again today. It's been a long winter. Thanks again for a very usable program.
Some more pics: Sorry, none of my Eris Droid and Shooter Lite
