Vortex Crossfire II 1Inch 4-12×40 AO Dead-Hold BDC

Product Description

The Vortex Crossfire II 4-12×40 AO Dead-Hold BDC is a variable magnification riflescope with a 1-inch tube, adjustable objective, and a bullet-drop compensating reticle designed for long-range shooting.

The 4-12x magnification range covers everything from close timber shots to extended-range precision work. The adjustable objective lets you dial out parallax for clearer images at different target distances.

The Dead-Hold BDC reticle provides holdover points for bullet drop at extended yardages, eliminating the need for constant turret adjustment when moving between targets at different ranges.

Key Facts

• Brand: Vortex
• Magnification: 4-12x
• Objective Diameter: 40mm
• Tube Size: 1-Inch
• Reticle: Dead-Hold BDC
• SKU: vortex_crossfire_ii_CF2-31019

How the Dead-Hold BDC Reticle Works

The Dead-Hold BDC reticle features a series of hash marks and dots on the vertical crosshair. Each corresponds to a bullet’s point of impact at increasing distances when the rifle is zeroed at a standard range.

Once you establish which hash mark matches which yardage with your specific load, you simply hold that point on your target rather than dialing elevation. This speeds up shots at multiple targets across varying distances, especially in hunting or field shooting scenarios.

The holdover points are most accurate when paired with specific cartridges and loads. Call 817-393-4000 to discuss how the Dead-Hold BDC matches your caliber and bullet weight.

Why Choose a 1-Inch Tube Scope

The 1-inch tube diameter is the traditional standard for hunting riflescopes and remains the most common mounting format. Ring sets are widely available, affordable, and compatible with most older and newer rifle platforms.

One-inch tubes also tend to be lighter than their 30mm counterparts, reducing weight on hunting rifles where you carry all day. While they offer slightly less internal adjustment range, they provide ample elevation and windage for typical hunting distances and general precision shooting.

Adjustable Objective Explained

Parallax is the apparent shift of a reticle relative to the target when your eye moves off the optical centerline. An adjustable objective (AO) lets you dial in the scope to eliminate parallax at your chosen target distance.

The AO ring on the Crossfire II 4-12×40 sits at the objective bell and is marked with yardage indicators. Turn the ring until the target appears sharpest and the reticle no longer shifts when you move your head slightly behind the eyepiece.

Adjusting for parallax becomes increasingly important as magnification increases and target distances grow. At 12x, even small amounts of parallax can shift your point of impact.

Buying from Western Sport in Roanoke, TX

Western Sport is a licensed FFL/SOT dealer serving North Texas and the DFW area since 2007. Owner and gunsmith Lance Rankin offers gunsmithing services, transfers, and expert advice on optics and firearms. Call 817-393-4000 to order or to confirm specifications.

Frequently Asked Questions

Q: What rifles is the Vortex Crossfire II 4-12×40 AO compatible with?

A: The Vortex Crossfire II 4-12×40 AO fits any rifle with a Picatinny or Weaver rail and 1-inch scope rings. Common platforms include bolt-action hunting rifles, AR-15 flat-top uppers, and scout-style rifles. Ensure your rings provide adequate clearance between the objective bell and barrel.

Q: How do I zero the Dead-Hold BDC reticle?

A: Zero the primary crosshair at your chosen distance, typically 100 or 200 yards depending on your cartridge. Then shoot at known distances to map which BDC hash mark corresponds to each yardage with your specific ammunition. Record those holds for field reference.

Q: What is the difference between the Crossfire II and Diamondback riflescopes?

A: Both are Vortex entry-level to mid-tier lines. The Crossfire II series generally offers simpler reticle options and classic hunting features, while the Diamondback line includes tactical-style reticles and often features a 30mm tube. Either serves well for hunting and general precision shooting.

Q: Can I use the adjustable objective at all magnification settings?

A: Yes, you can adjust the objective at any magnification between 4x and 12x. Parallax becomes more noticeable at higher magnifications, so you’ll benefit most from the AO adjustment when dialed to 10x or 12x and shooting at extended range.

Q: Does the Crossfire II 4-12×40 work for both hunting and target shooting?

A: Yes, the 4-12x magnification range and Dead-Hold BDC reticle suit both applications. Low magnifications work for close-range hunting in brush or timber, while 12x provides enough detail for paper targets or steel at distance. The BDC speeds up holdovers in dynamic field conditions.

Q: How do I order the Vortex Crossfire II from Western Sport?

A: Call Western Sport at 817-393-4000 to place an order or discuss mounting options and compatibility with your rifle. Western Sport serves customers throughout North Texas and the DFW area and can assist with transfers and gunsmithing services.

Additional information