Leupold RX-1400i TBR/W Gen 2 Review

A plain laser rangefinder returns a line-of-sight distance and, on better units, an angle-corrected horizontal distance. Leupold's TBR/W technology goes a step further and returns a ballistically calculated range, meaning the display already accounts for the bullet's drop over that specific distance and angle rather than leaving you to run drop separately after ranging. Leupold states the unit can also generate a hold point for a 10 mile per hour wind at a 90 degree angle out to 800 yards, which folds a wind estimate into the same reading.

The Flightpath feature adds a visual layer on top of that: a Selectable Bow mode shows potential obstructions along the bullet's or arrow's path and calculates an angle-compensated range around them, so a shooter looking through a gap in branches can see whether the trajectory actually clears what is between them and the target rather than guessing.

Overhead obstruction is one of the most common reasons a shot that looked clear through a rangefinder or a scope is not actually clear along the bullet's real path, because the bullet's arc rises above the line of sight before falling back through it. A shooter aiming under a low branch that looks clear at the moment of aiming can still clip it partway to the target if the bullet's rise carries it into the branch. Flightpath addresses this directly by drawing the computed arc against what the rangefinder sees, which is a genuinely useful visual check rather than a marketing flourish, and it is unusual to find at this price.

The limitation is that the display shows Leupold's own computed trajectory model, which depends on the ballistic profile entered or assumed for your load. A shooter running an unusual bullet weight or a load well outside typical published trajectories should treat the Flightpath arc as a helpful visual reference rather than a certified clearance guarantee.

The honest weakness of this unit is shared with every laser rangefinder at any price: the 1,400 yard headline figure comes from a large reflective surface, and a soft, non-reflective animal in poor light will read at a fraction of that, commonly a third to a half of the published maximum. Leupold's own decision to publish a separate 1,200 yard tree figure alongside the 1,400 yard reflective figure is honest disclosure, and it is still not a game-ranging promise, because trees are larger and more textured than most animals.

The second real limitation is that the TBR/W ballistic computation and the Flightpath display both depend on an assumed or entered trajectory profile. They are a genuine convenience over a plain distance reading, not a substitute for confirming your own drop data at the range, and a shooter who never verifies the unit's assumptions against their actual rifle is trusting a computed number rather than a measured one.

One direction for a simpler unit at a similar price, and one direction for more published range and a brighter display.

The Vortex Crossfire HD 1400 Laser Rangefinder matches the RX-1400i's published 1,400 yard reflective range at a similar price, with angle compensation but without the TBR/W ballistic computation or the Flightpath display, which suits a shooter who would rather run their own drop chart than trust an onboard computation. The Vortex Diamondback HD 2000 Laser Rangefinder steps up to a published 2,000 yard reflective range and a brighter red OLED display for a higher price, trading Leupold's Flightpath feature for raw ranging distance.