On this week's #SundayGunday, we’re checking out the Revic BR4, a rangefinder whose precision is rivaled only by its range. Weighing in at a mere 10 ounces, roughly an inch-and-a-half wide, three tall and five long, the package is small and lightweight but packs a serious punch. It boasts a 10x magnification, which is necessary given its massive, 4000 yard range on reflective targets. Even handheld, with all the imprecision yielded by a shaky hand, the rangefinder will reach out past 2500 yards with ease, even on non-reflectives.The most interesting facet of the BR4, however, is not its range, but rather the shape of its beam. Rather than returning to the unit along a vertical plane, the beam shoots horizontally, in a narrower profile than most, with a beam divergence of just .2x16 MRad. Both these traits give it a better chance to miss any interfering materials such as trees, or lower elevations of hillside when you're ranging an animal on top.
Aside from this, the BR4 has some pretty stunning technology onboard. A built-in weather station calculates pressure and temperature, along with compass direction and incline. Taking all these into account, the BR4 will return windage and elevation adjustments upon ranging your target. This is a far cry from the simple “rifleman’s rule” many rangefinders use to take shot angle into account. Using more advanced functions, the BR4 will even calculate for Aero Jump, Spin Drift, and Earth Effects. It will literally read latitude, magnetic declination and compass bearing to compensate for Coriolis Effect.
The rangefinder can be operated in several modes. AMR, or Angle Modified Range Mode, will take shot inclination into account, and give you degrees in the corner of the heads up display. Range Only mode returns the line-of-sight angle, regardless of angle. Target mode will allow a user to choose between settings of Near, Far, LR Near or LR far. This will affect the balance between beam precision and range, as it instructs the rangefinder to ignore or take into account objects in the foreground, like brush or fog. Finally, you can pair any of these with a BDC mode, which utilizes the ballistic profile inputted into your Revic app, to get outputs tailored to your specific rifle and load. Other outputs are metric, standard imperial, MOA or MRad
The BR4’s red head’s up display has four brightness settings, where you can easily see holds, line-of-sight range, temperature and wind speed (either manually entered or from a linked wind meter). For more information on this shockingly advanced rangefinder, which retails for $1,285, visit revicoptics.com. And for more #SundayGunday any day of the week, check out our playlist on YouTube, where all previous episodes are archived.
