Like I said, I'm reluctant to post too much here, lest I inappropriately cross the line over to spamming, so I'll keep my comments as brief as possible. Contact me by email
dmc@danielchisholm.com if you want detailed info.
Tikka223, thanks for the kind words.
TrxR, bush1: Sorry, no useful website to send you to yet. Have simply been too busy working on hardware, software etc to get around to a website (which is sorely needed).
About a month ago our system was demo'd at 800-900-1000yards in New Zealand. It will also be demo'd there next week, during their national matches:
ht tp://www.nranz.com/news/electronic-target-system-trialled-seddon-range-trentham
If anyone wants to troll through a large but disorganized set of photos, this is all I can offer:
ht tps://docs.google.com/folder/d/0B-PCFNDGQaSEQ1BkQ3hRYU81cnM/edit
Cost: to get the first target running costs $4600 ($1800 for the server and $2800 for the yellow target box). For each additional target you add another $2800 yellow target box. This makes it a bit "rich" for single-target installations; the current architecture is oriented towards clubs and rifle associations. Having said that, I have made several single-target system sales to individuals with their own range.
Note that one target can keep a *lot* of people busy, happy, and shooting all day; one target should handle 6-10 shooters.
The server is designed to handle up to ten targets (yellow boxes) at a time. The yellow boxes are completely independent of each other (you could set up one 300m in front of the firing point, another at 600m, and another at 900m, and then spend the day shooting three different distances from the same firing point).
The measurement accuracy depends on a number of factors, principally the speed of the bullet as it hits the target, and the amount of wind and gusts at the target. It tends to be "more than precise enough to be useful" for many applications (meaning that the measurement error of the target system is a small fraction of the grouping ability of the rifle/ammo combination being used). At short range (100 and 300), typically precision is a bullet diameter or less (so - it is not precise enough for 100 yards benchrest shooting; but it is precise enough for 300m F-Class shooting). At 600, precision is half an inch or so. A .308 with good ammo at 900m will usually be measured to an inch or better, if the wind isn't too terribly gusty.
