The USO ER-25 (Extreme Range) scope is for those rifles you want to shoot out to a possible 2000 yards such as the popular .338 offerings available today. With a magnification range of 5-25x, side parallax, EREK low profile elevation, 34mm tube with a 56mm objective and the H37 long-range Horus Vision reticle, this is the ultimate extreme long-range scope.
The H37 reticle has the main hold zero in the upper third of the field at 25x. This allows for the maximum amount of holdover without lowering the magnification for a total of 12 mils of hold available at 25 power. This would allow 1500-yard engagement with a 7mm WSM using a 162 Amax at 3000 FPS MV off a 100-yard zero with no dialing at full magnification—very impressive.
From U.S. Optics
Have you heard of the impossible shot? Not if you have an ER-25 mounted to your shooting stick. With the right caliber and rifle, shots beyond 2,000 yards become a reality with the ER-25 series scopes. A 58mm objective lens sits in front of a Turret Parallax Adjustment Locater (TPAL) system guaranteeing the sharpest image resolution possible throughout the 5-25X power magnification range and at distances past 2,000 yards. Target acquisition for accurate shots beyond 2,000 yards is possible when dialing the power ring of an ER-25 to maximum power. When weather and light conditions are less than optimal the 12-position illuminated reticle system provides yet another advantage for taking your best possible shot. All ER‑25 optics feature an Erector Repositioning Elevation Knob (EREK) system that maximizes gross elevation travel adjustment for maximum elevation adjustment where traditional turrets leave off beyond 2,000 yards. MIL, MOA and Horus reticle options are available in the ER-25 product line.
Optional elevation and windage knobs, reticles, lit reticle modules and finish colors available at an additional charge. Scope body, eye piece, objective housing and any and all other body parts are made with 6061-T6 aircraft aluminum and are then coated with a matte black type III hard anodizing. Duel elevation and windage rebound springs will insure decades of reliable and accurate adjustments.
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