Using Mean Radius to Measure Groups

[Maple Syrup Actual]

If you were willing to actually measure the position of each hole, it would be pretty easy to enter it in a spreadsheet and do the calcs. But that's a lot more measurements than the one it takes to do "group size."

Yeah, that's great for people who don't consider Excel to be their ultimate enemy...but as someone who despises spreadsheets, I'm definitely not going to do that. And the time it takes to do that stuff by hand, the measuring and everything, that's just a chore. I admit not everyone has to process 50 targets at a time like I used to do, but for me if there isn't an automated setup it's not happening.

The current version will work just dandy on a phone browser, BTW, but you will need a signal to reach our site, obviously. We tested it on multiple iPhone versions and a bunch of Android phones.

if you're still using a Treo, well, you're probably out of luck.

I don't have a good answer for why I didn't understand this on my own...derp

[okie john]

Excel = Spawn of Evil, so NFW on that.

I'll try the mobile version on my iPhone but I'd pay several PF dollars for a version that doesn't require connectivity.


Okie John

[OlongJohnson]

I'm an engineer. Excel is one of the four programs I bring up every time I start my computer.

[Maple Syrup Actual]

I use it extensively at work for engineering purposes also. I hope it one day gets erased from the face of the earth.

[CCT125US]

This is very nice to have, thank you!

Shot yesterday, from 25 yards.

Done on Android.

[CCT125US]

After a bit of use, I thought I'd pass along a tip. I found it helpful to mark targets so that the scale can be easily set. On the below target, I placed ticks (circled in green) 6 inches apart, corresponding to the 8 ring. These can be more easily lined up than estimating the 5.54" of the 9 ring.

[OlongJohnson]

After a bit of use, I thought I'd pass along a tip. I found it helpful to mark targets so that the scale can be easily set. On the below target, I placed ticks (circled in green) 6 inches apart, corresponding to the 8 ring. These can be more easily lined up than estimating the 5.54" of the 9 ring.

If I was using the system for anything that mattered, I'd have to be very careful about lens distortion using marks in that location.

[CCT125US]

If I was using the system for anything that mattered, I'd have to be very careful about lens distortion using marks in that location.

Fair enough. I did a quick check with what I'm using, and for my purposes, it will do. The black on a B8 is 5.54". I did my best to place the shot indicators on the lines at 3 and 9 o'clock (Not the easiest). Came up with a 5.52" group. I'm good with that for the evaluation of recreational pistol shooting.