Re: What optic for 3 Gun Competition?
This is what I use and would even if I didn't work for Vortex.I also use a mgm switchview.
Optical Features
First Focal Plane Subtensions remain consistent throughout magnification range.
APO Objective Lens System Corrects color across the entire visual color spectrum—virtually eliminating chromatic aberration across the entire field of view.
Optically Indexed Lenses Delivers optimum image sharpness and brightness with true reticle use for full ranging and holdover from edge to edge because of computer-controlled alignment during construction.
XD Lens Elements Extra-low dispersion (XD) glass enhances resolution, color, and contrast.
XR Lens Coatings Vortex XR proprietary anti-reflection lens coatings increase light transmission with multiple coatings on all air-to-glass surfaces.
Construction Features:
30 mm Tube Provides greater strength and wider adjustment lattitude as compared to a 1-inch tube.
One-Piece Tube Maximizes alignment for improved accuracy and optimum visual performance as well as strength and waterproofness.
Aircraft-Grade Aluminum Construction from a solid block of 6061-T6 aircraft-grade aluminum delivers increased strength and rigidity.
Waterproof O-ring seals prevent moisture, dust, and debris from getting inside the tube for reliable performance in all environments.
Fogproof Filled with argon gas to inhibit internal fogging over a wide range of temperatures.
Shockproof Lenses are locked in place, fore and aft, with machined locking rings to remain in perfect alignment and resist impact.
Hard Anodized Finish Type-3 hard-coat anodization is durable; the low-glare matte surface of Stealth Shadow Black helps camouflage the shooter’s position.
ArmorTek Ultra-hard, scratch-resistant coating repels oils and corrosive salts on outer glass surfaces.
Internal Mechanism Design Features:
Tall Uncapped Turrets Make range calculation and shooting adjustments fast and accurate with subtension marks that match the reticle.
First Focal Plane Reticle Scale of reticle remains in proportion to the zoomed image. Constant subtensions allow accurate holdover and ranging at all magnifications—no shift in point of impact during zoom.
Friction Reduction System Provides superior durability, repeatability and accuracy for the life of the product. Prevents galling or deformation of the erector screw contact point because the heat-treated, hardened-steel pad floats on the end of the turret screw and interfaces with a hardened steel ring on the erector tube for steel-on-steel contact. Patent pending.
Turret Screws Provides low-friction, wear-resistant performance: precision-machined from a silicon-brass alloy and treated with an advanced dry-film lubricant. Turret screw threads are ultra-precision machined to sub-2 micron tolerances (less than 78-millionths of an inch). Ultra-smooth operation and adjustments.
Erector Tube System Precision-machined from premium brass alloy with anti-galling properties for great strength and durability. The erector spring of chromium vanadium withstands compression, has high fatigue resistance, and is tumble-polished to a mirror finish for micro-precise elevation and windage adjustments.
Single Spring Construction Fully constrains (without over-constraining) the optical system for predictable, improved accuracy throughout the range of elevation adjustment.
Glass-etched Reticle Protected between two layers of glass (not made from wire) for optimum durability and reliability.
Illuminated Reticle Electronic illumination aids in low light visibility of reticle. Battery included.
Illumination Control Can be turned on or off with a single click between each intensity level—allowing access to a preferred illumination setting without having to progress through each intensity level.
Convenience Features:
MagView Bar Combines a fiber optics magnification indicator with raised rear-facing magnification references for clear viewing in low light conditions. Patent pending.
Radius Bar Fiber optic turret rotation indicator provides illuminated and tactile point of reference for turret rotations. Patent pending.
Fast Focus Eyepiece Allows quick and easy reticle focusing.
Flip Cap Covers Protect ocular and objective lenses.
Here are the reticle choices. I use the EBR-556. The drops work damn near perfect with 55's and hot 77's like the 262 mod o's .I can get it satisfactory with just about any 223 round 55gr and up. The reticle is set up for quick ranging if necessary,10mph wind hold offs and holdovers of course. It really works great!
Scott