Chronograph - Should Have Done This Sooner

Anyone have an opinion on differences in chronos? I bought a Caldwell ballistic precision chrono for $90 at cabelas. Works pretty well in cloudy weather, lots of errors when it's sunny. I hope it's giving accurate numbers, basing my uspsa PF off of it.

I have the same chrono and had the same problem. I found that the IR sun screens suck up some serous battery power so what I do is tape a paper target over the regular sun screens to make a canopy. Even in the brightest sun light it works without getting an error message now.
 
Shooting Chrony Alpha Master

iFirst use and I shot 49 rounds through mine yesterday. I had only one error, first round of the fifth string. Weather was gray and cloudy, @ 60 degrees. Recorded each round on paper but appreciated the ability to get the string data at the end.

Little experience, but so far I am very happy with it.
 
F1 Shooting Chrony

Had one for 8 or 9 years and finally shot it. Got another through Amazon for about $80.00 Works good enough for me. Statistical calculations are not important to me. I am interested in velocity. SD and ES are meaningless in my world. As said above---accuracy of a load is all that really matters to me. Knowing the velocity is necessary for longer range shooting (and don't misinterpret me---400 yards is long range to me) when looking for trajectory numbers.
 
Competition Electronics ProChrono Digital Chronograph

Competition Electronics ProChrono Digital Chronograph
I love mine. I have not had a shot not register.

Read reviews here for both and it sounds like the Chrony products should be shot.

The ProChrono display on the unit is big but not bright. I got the CDROM and USB cable and connect my laptop on the bench. They have a Bluetooth device that eliminates the cable.
The software does stats and can dump data into Excel.
Accuracy = low SD, consistent result from shot to shot.
High SD = inconsistancy, degraded accuracy.
 
Tony C: Now you have a tool that allows you to build rounds that are specific to the power factor of your action shooting discipline (USPSA minor). I'm here to tell you the fun is just beginning. . .

I shoot revolver in both IDPA (105 PF) and ICORE (120 PF). (I also shoot steel challenge, but it has no PF requirement, so I just use my IDPA loads.)

Thanks to my chronograph, I have IDPA compliant rounds that are just above PF for thee different bullets, using four different powders - yeah, that's 12 different load recipes. And getting there required chronograph work ups for all of them.

For ICORE, I got smarter - just two different bullets with two different powders :p Four takes less time than twelve ;)

As I have learned, chronographs can be both a blessing and a curse.
 
I'm at the point now where I've spent enough time understanding what my Alpha Crony likes and does NOT like as far as light conditions. My crony will work best in brighter overcast (no sun shades) or bright CONSISTENT sun (using the sun shades). If It's passing sun/clouds or dark overcast or early morning sun or late day sun I don't bother setting it up because I know for a fact I will be getting the crony's random "ERR2" or "ERR1" messages.. :rolleyes:

Yes they can get frustrating, but still would not live without one. Many guys I shoot with at my 600 yd range that "guess" their dopes or go by the advertised FPS data on the box of factory ammo always struggle with needing many sighters where I'm shooting 9 rings on the first shot because I have my exact velocity. So safe to say my crony has paid for itself with respect to sighter ammo saved.
 
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