For the past 20 years, long-range shooters have been looking for a scope reticle that incorporates both holdover and wind and will work with a multitude of various calibers. The problem has always been compromising precision for ease of use and adaptability to multiple calibers.
The Tremor 3 reticle accomplishes having an exact holdover system and a precise wind hold system that is really quick to use in the field. The reticle is a Christmas Tree style that is in mils. That part of the reticle has been done many times. The innovative part that it incorporates is wind dots that you can calibrate to any caliber. At each Mil line, there are a series of dots with the 4th one being larger. There are also a series of dots at the half-mil point, but these dots are all the same size. It is important to note that these dots do not correlate to any exact mil measurement, they are strictly wind dots.
To calibrate the reticle, you use the 4 mil line and the second wind dot on that line. The second dot on that line is .95 mils. Use a ballistics calculator to determine what range a 4 mil holdover is necessary with a 100 yard zero. Then determine what wind speed at 9 o’clock correlates to .95 mils, half of this value is the value for each dot.
As an example, I’ll use a 6.5 Creedmoor load with a 140-grain bullet going 2700 fps at 5000 feet of elevation and 70 degrees. It may be easiest to find the range that uses 4 mils of holdover by plugging in your parameters and then pulling up a range card in 25-yard increments. For this load, 4 mils is the hold you need for 650 yards. At this range, .95 mils correlate to 12 mph of wind. Since .95 mils are the second dot, the first dot is 6 mph. You can now use the dots up and down the reticle and know that each dot is in 6 mph increments for this load.
This might have to be adjusted in a really drastic elevation or temperature change situation. Putting changes into my ballistics calculator, I had to change the elevation by 4000 feet to get a significant enough change. Even then the dots equaled 5 mph, which wouldn’t mean much in the field, especially when wind calling is a best-educated guess.
I used this reticle throughout the summer for long-range practice. It is very simple to use once you learn it. It makes calling and making a wind hold very simple. All you have to do is use the amount of holdover for the range and conditions of the shot, make an educated guess for the wind direction and speed with a wind meter or other indicators, and hold the holdover and dot associated with your data.
This reticle also makes a second-round hit fast if you miss with your first. If you miss you simply use where the bullet impacted in the reticle relative to your point of aim as your new aiming point. Let’s say you are engaging multiple targets like in a prairie dog town and you learn that the first wind dot is your hold for wind, to engage other targets at different ranges all you have to do is use the hold for that range and the first wind dot and you will continue to make hits.
This Horus scope has performed flawlessly. It tracks well when you have to dial. It is very well built and should hold up to a lot of abuse. The turrets are 5 mils per revolution, I wish it had more, but with the Tremor 3 reticle the scope shouldn’t have to be dialed much. This scope came with Horus’s Long Range Bundle in which you get a rangefinder and weather station that features Bluetooth to work with your phone and works with Horus’s ballistics calculator. This makes a good value for someone getting started in long-range shooting and wants the Tremor 3 reticle. It is the least expensive scope on the market with the Tremor 3 reticle.
I was extremely impressed with the scope and reticle. I’d like to own a bunch of them. The rangefinder didn’t range as far or as consistently as I’d hoped and the Bluetooth was a little glitchy on the weather station. I can’t really recommend them because of that. The Bluetooth might have been my phone and your experience may be different than mine with a different phone and different rangefinder. However, if you’re looking for a package deal, and don’t already have a rangefinder and a weather station, this is a hard deal to beat at an MSRP of $1799.99 for everything or you can find just the scope for $1499.99