Vortex Viper PST GEN II 5-25×50 EBR-4 MOA

Product Description

The Vortex Viper PST Gen II 5-25×50 EBR-4 MOA is a variable-power riflescope designed for precision long-range shooting, tactical applications, and competitive use. This second-generation Viper PST pairs a 50mm objective lens with 5-25x magnification and an MOA-based reticle system. The EBR-4 reticle uses Minute of Angle markings, allowing shooters to make windage and elevation adjustments that correspond directly to the scope’s turrets.

This scope suits precision rifle shooters who dial their turrets for elevation and need consistent, precise adjustments. The wide magnification range works from mid-range field shooting at lower power up to confirmed hits at extended distances when cranked to 25x.

Key Facts

• Model: Vortex Viper PST Gen II 5-25×50 EBR-4 MOA
• Magnification Range: 5-25x
• Objective Lens Diameter: 50mm
• Reticle Type: EBR-4 MOA
• SKU: vortex_viper_pst_gen_ii_PST-5251

Why Choose the EBR-4 MOA Reticle

The EBR-4 reticle is an MOA-based holdover system that offers hash marks and numbered graduations across both the vertical and horizontal axes. Each mark corresponds to a specific Minute of Angle measurement, which simplifies range estimation and wind hold calculations. For shooters who already think in MOA terms, the EBR-4 eliminates mental math during the shot.

MOA reticles pair naturally with MOA turret adjustments. When your reticle and your turrets speak the same language, the system becomes faster and more intuitive under time pressure. That consistency matters in competitions and in any scenario where you need to dial for distance or hold for wind without second-guessing your math.

5-25x Magnification and 50mm Objective

The 5x low end provides a wide field of view for target acquisition and positional transitions. At 25x, the upper end delivers the magnification needed to resolve small targets and spotting impacts at longer ranges. That five-fold zoom range makes the PST Gen II 5-25×50 adaptable to different shooting disciplines without swapping optics.

A 50mm objective lens gathers enough light for clear images in variable conditions, though performance in low light depends on other factors not specified here. Objective diameter balances light transmission with the added weight and mounting height that larger lenses require. Call 817-393-4000 to confirm specific dimensions and mounting requirements for your rifle.

What to Pair With This Optic

The Vortex Viper PST Gen II 5-25×50 requires a sturdy scope mount that can handle recoil and hold zero over repeated shooting sessions. Choose rings or a one-piece mount with the correct tube diameter and height for your rifle and shooting position. The scope’s weight and length also matter for balance, especially on lighter rifle platforms.

This scope works well on bolt-action precision rifles chambered in .308 Winchester, 6.5 Creedmoor, and similar cartridges that benefit from precise adjustments at distance. It also suits gas-gun platforms built for accuracy, though you should verify compatibility with your specific setup. Western Sport stocks a range of riflescopes and can help match the right glass to your rifle.

Buying from Western Sport in Roanoke, TX

Western Sport is a licensed FFL/SOT dealer and gunsmith shop serving North Texas and the DFW area since 2007. Owner and gunsmith Lance Rankin and the team handle transfers, special orders, and gunsmithing services on site. Call 817-393-4000 to confirm specifications, ask about mounting options, or place an order.

Frequently Asked Questions

Q: What is the difference between the EBR-4 MOA and MRAD reticles in the Viper PST Gen II?

A: The EBR-4 MOA uses Minute of Angle graduations, while MRAD reticles use milliradian measurements. MOA divides a circle into 21,600 minutes, with each MOA equaling roughly one inch at 100 yards. MRAD divides the circle into 6,283 milliradians, with each milliradian subtending one meter at 1,000 meters. Choose the system that matches how you already calculate distance and wind.

Q: Does the Vortex Viper PST Gen II 5-25×50 work on a .308 bolt gun?

A: Yes, the Viper PST Gen II 5-25×50 pairs well with .308 Winchester bolt-action rifles and similar precision cartridges. The scope’s magnification range and MOA reticle suit the effective range and ballistic curve of .308. Confirm that your chosen mount provides adequate eye relief and mounting height for your stock and shooting position.

Q: Can I use this scope for PRS competitions?

A: Yes, the Viper PST Gen II 5-25×50 is commonly used in Precision Rifle Series and similar competitions. The 5x low end aids fast target transitions, and the 25x top end resolves distant steel. The EBR-4 MOA reticle supports holdovers and turret dialing, which are both used in match settings. Many competitors run this exact model.

Q: What rings or mount do I need for the Viper PST Gen II?

A: The tube diameter and mounting specifications should be confirmed before purchasing rings or a mount. Western Sport can help identify the correct size and height for your rifle. Call 817-393-4000 to discuss mounting options and ensure proper fit with your action and stock.

Q: Is the Vortex Viper PST Gen II 5-25×50 covered by a warranty?

A: Vortex offers warranty coverage on its optics, though the specific terms are set by the manufacturer. Contact Vortex directly or call Western Sport at 817-393-4000 for current warranty details and how to register your scope after purchase.

Q: How do I buy a rifle scope through Western Sport?

A: Call 817-393-4000 to place an order or confirm current availability. Western Sport is a licensed FFL dealer in Roanoke, Texas, serving the North Texas and DFW region. The team can also help with gunsmithing, mounting, and bore-sighting services once you receive your optic.

Additional information