Interesting...I would have thought it would have been micro-milradian divergence....
It uses four lasers; think about those stupid Venn diagrams from grade school math...the four will all intersect in the middle, providing more reflected energy. Or think about how electronic targets work: four sensors to collect data allow them to absolutely pinpoint bullet impact.
As for the cost, what are you guys spending on rifles already? This thing is no more expensive than a full custom build with a Nightforce or similar optic.
I posted on this subject in another thread; I thought I would post here as well:
I just joined this site due to the Ventus discussion. My focus is first shot cold bore hits. Anyone can adjust the first shot and hit; that doesn't fascinate me much. And as we all know, the wind is a deal killer when it comes to first round hits. My goal is to hit within five inches of my point of aim out to 800 yards, and within six inches past that. Anything else is a miss. I rarely miss at 800; my hit rate at 1200 is about 75%. I take a long time to estimate the wind, as I will explain below.
I am old enough to remember how range estimation was a skill; I used a custom reticle from Premier, together with a modified Ranging 1000 rangefinder. I would average the two distances; worked fairly well out to 500. Then, on Jul 30, 1993, I bought a Leica Geovid, becoming the first person to buy one in the US. In one fell swoop, my days of estimating distances were over. What used to take five minutes was now instant - and without error.
I see a lot of parallels here to LRF tech. The first one was expensive and heavy, but it was absolutely a game changer. Nothing came to close to it in terms of technology for quite some time (early Bushnell RFs were crap). Time moved on and today we have much more capable devices for a fraction of the cost.
Do I regret paying $4500 for my Geovid back in 93? Hell no - I quickly moved on from range estimation as the biggest issue to inherent rifle accuracy, and then wind. I was hitting at long range while others were waiting for the price to come down.
The way I estimate wind today is very similar to what I did to estimate range back in the day. I rely principally on mirage, normally by using the side parallax on my NF scopes (I know, a spotter situated so I can look thru that the same time I am aiming is better). But on cloudy days, like last week, where the wind was gusting all over the place, there was no mirage. In the desert foliage doesn't blow much and when it does the direction is often hard to identify. I look for what it is doing behind rocks etc to identify direction, and well as use a shock corded wind flag and my hand held anemometer.
Let's face it, holding up an anemometer like a Kestrel (there is nothing magic about the Kestrel's ability to measure wind) is not terribly accurate. At 1200 yards my bullets are flying higher at some points than I can hold it. The wind effect is almost always greater than I measure with an anemometer. Last week, on that cloudy day, I hit 1 MOA left at 800 yards - I held 1.75 MOA right but total drift was 2.75 - or was it? That rifle can shoot 1/2 MOA at 800, so my true drift was anywhere from 2.25 to 3.0 (bullets don't travel in a straight line - half hit to the right of our point of aim, half hit to the left, the distance being a function of your accuracy).
Thus, the first redeeming feature of the Ventus: you can practice wind calls and not have to worry about the impact of rifle accuracy. That itself is huge.
I typically shoot at 1200 and 1300 yards (these are oriented 45 deg from my 800 yard target) during my practice sessions, which I do at least once a week and will do once per day when my Colorado retreat is finally built. But last week, I didn't even bother shooting past 800 - the wind was gusty and constantly shifting. Here is the second thing I think the Ventus will do: if you constantly "zap" the wind and see it moving more than a few miles per hour in a second or two, you know a first round hit at 1200 is going to be lucky, simply due to the impact a nearly 2 second TOF creates in a constantly changing wind.
The Ventus will only measure to 500, but it will extrapolate the effects over 500 past that. Who doesn't think that is better than what you can do without it? Yes, the wind can change after you measure the speed. But I think most of us determine the prevailing condition, calculate the solution, and then fire when that condition is present. What would be cool is if the Ventus can be focused halfway between your target and your position, thus showing mirage. Zap the wind when the prevailing condition exists. Shoot when you see that either in your spotter or with your parallax focused close (spin it back quickly before taking the shot of course).
A lot of you guys apparently think Mr. Fudd is the only one who sees value in the Ventus. Did we ever say that about LRFs? GPS? As for only the affluent being able to buy one, how much do you spend on a rifle build, and how many of those do you have? Hell, I spend more on most hunts than this costs, so for me it is a no brainer. A guy who can afford a G650 is going to get there faster than a guy flying a Super Cub; it might not be fair, but it's life.