Group measuring tools

Well, it's cute but you've still got to subtract the value of the diameter of one round so it doesn't do all the math and, for that price, I'd expect it to at least include a celebratory chime and have a memory (erasable of course) with date and time of my best groups. I don't usually record my group sizes, I just save the targets. Folks seem to believe what they see more than a story about what happened at the range.
 
Colliers_custom said:
here you might want to check this out to and it's free. http://www.6mmbr.com/ontargetsoftware.html anyways hope this helps.
Click to expand...

I tried it and it don't work that great. I took targets I had measured in matches, and tried that software and came up with a complete different number, not even close. I have tried it with a few targets with mixed results.
I have spent a few hours using it and found it works so-so at best.

I would like a measuring device so I can measure groups shot at the range. The only accurately measured groups I have are ones shot at matches.
 
Just shoot one shot per target, use your calipers to measure and subtract the bullet dia. You will have something to really brag about and it won't cost you even one red cent.:D


PS. Don't dare shoot with a moving backer, it just spoil es your stories. :confused:
 
It looks like I started out with a Neil Jones.

I must have modified it because in now looks like this.

DSC06394sw.jpg


What I did was flip the plastic piece shown in the original position on Neil's webpage.

http://www.neiljones.com/html/target_measuring.html

Then I added another piece of plastic and drilled a 6MM hole and one for .308. You get some parallax because of the two pieces of plastic stacked but if you line the holes up carefully from above you can get readings that repeat pretty precisely. And fast...

Here is a picture with it lined up on a target. You can see my 30 cal holes over to the side.

DSC06395sw.jpg


Here is a shot of the back and the way I attached the new piece of plexiglass.

DSC06397swb.jpg
 
Last edited by a moderator:
I have the Jones tool, without the magnifier (I use a headband binocular magnifier.), that I got out of an estate. Comparing my measurements with it, compared with those that I have done with calipers alone, measuring and subtracting the diameter of one bullet hole from the same target, the Jones tool measurements are very slightly smaller. The tool was not something that I needed, just something that has been fun to have, so that I know that my measurements are done the "right way". Realistically, for most purposes, unless you are shooting very small groups, the difference is insignificant.
 
PAUL REVERE said:
i do not see it listed..and do not remember where i bought it but i have a device that works very well in my opinion.
it is two parts. one is a pivot or stop pin. the other is a holder for pcs of plastic that have dia's engraved in them( three dia per pc)
the two main parts are epoxied to a set of calipers.
the calipers are closed and zeroed. with a straight lined determined thru the two distant holes, the tool is placed with a engraved dia over the first hole.
the stop is pressed with the thumb to hold the place, and the calipers are opened to center the same dia over the distant hole......direct readout from the caliper.

the big advantage in my opinion is the ability to center over a hole and the direct read out.

just do not know who made it..i thought hart...mine is blue anodized aluminum...
Click to expand...

Yeah, I have one too. It is by Hart. Here's the link: http://www.rwhart.com/store/proddetail.asp?prod=RWH-X-H100
 
You must log in or register to reply here.
Back
Top