Cuinfi 3-9×40 SFP Dawn Multi-Coated Hunting Riflescope

Brief Introduction

The Dawn 3-9×40 Hunting Riflescope is a lightweight, reliable optical tool tailored for hunters and outdoor enthusiasts who demand precision in mid-range scenarios. Featuring a 1 Inch Tube and durable SFP Metal Reticle, this riflescope balances performance and portability, weighing just 417g—ideal for all-day hunts in rugged terrain. Equipped with a Fully Multi-Coated Lens that delivers 85-90% light transmittance, it ensures bright, clear views during dawn, dusk, or shaded hunting conditions. Whether pursuing big game, small game, or varmints, the Dawn 3-9×40 offers intuitive controls, rugged construction, and consistent accuracy, making it an essential companion for hunting expeditions.

Initial Set Up

• Reticle Focal Plane (Second Focal Plane vs First Focal Plane)

All riflescope reticles can be termed either first focal plane (FFP)or second focal plane(SFP),with respect to the reticle's internal location within the erector system. An SFP reticle is visually consistent in size and weight across the magnification range; however the subtension values are only accurate on one magnification, typically the highest.In contrast,an FFP reticle will scale with magnification, and their subtensions used for ranging, holdovers, and wind corrections will remain constant. The reticle size will appear larger at higher magnifications, and smaller at low magnification.

• Second Focal Plane Reticle

These Cuinfi® 3-9x40 riflescope features a second focal plane(SFP)reticle. SFP reticles are located within the riflescope near the magnification ring. This style of reticle will appear consistent throughout the entire magnification range.

Note: The Cuinfi® 3-9x40 riflescope reticle are calibrated at the highest magnification.For the hashmark's value to be true,you need to be on the highest magnification.

• Parallax Adjustment

The Cuinfi® 3-9x40 riflescope is non-adjustable for parallax correction and is set from the factory to be parallax-free at 100 yards(90 meters).When shooting at distances other than 100 yards, using good consistent shooting form and cheek weld will prevent most problems with parallax.

• Magnification Adjustment

The Magnification Adjustment Ring is used to change the riflescope's "power." The Cuinfi®i 3-9x40 riflescopes are variable powered optics with a 3x-9x optical design. To adjust your optic's magnification, rotate the Magnification Adjustment Ring clockwise, or counterclockwise, to increase or decrease the magnification to your desired level.

TURRETS

The Cuinfi® 3-9x40 riflescope is offered in Minute of Angle (MOA).

Note:The top of both the windage and elevation turret will state what unit the riflescope is laid out in.

• Minute of Angle (MOA)Adjustment

Minute of Angle is an angular unit of measurement commonly found in riflescopes. It is used to measure bullet drop, wind holdovers, and for measuring targets. Both the reticle and turrets will be laid out in specific MOA values. 1 MOA equates to 1.047"at 100 yards, 2.09"at 200 yards, 3.14"at 300 yards,etc.Being an angular unit of measurement, the value of 1 MOA will increase/decrease proportionally as you increase / decrease the distance you are shooting. For this reason, think about all of your adjustments in MOA, rather than a linear unit such as inches. If your turret, reticle, and drop chart are all laid out in MOA, adjusting your riflescope for bullet drop or Wind age corrections is extremely easy.

• Elevation and Windage Turrets

Use turrets to adjust the bullet's point of impact. The Cuinfi®5-30x56 SFIRY riflescope uses a 1/10 MIL turret adjustment on both the Windage and Elevation Turrets. Each click will move the bullet's point of impact roughly. 36"at 100 yards. The turret on the top of the riflescope is the Elevation Turret, which is used to adjust the bullet's point of impact up and down. The turret on the right-hand side of the riflescope is the Windage Turret and is used to adjust the bullet's point of impact left and right.

• Capped Turrets

The Cuinfi® 3-9x40 riflescopes come equipped with Capped Turrets.This protects the turrets from accidental adjustment while out in the field,in transit,or in storage. You will need to remove the caps prior to making any adjustments on the turrets.

Note:The riflescope is still waterproof with the caps removed.

• To Make Turret Adjustments:

1. Remove the turret caps by spinning them counterclockwise.

2. Following the directional arrows,turn the dials in the direction you wish the bullet's point of impact to change. (If you hit high, dial down. If you hit low, dial up. If you hit right, dial left. If you hit left,dial right.)

3. When finished adjusting,replace the turret caps.

Note: The reticle will move in the opposite direction of the turret dials. When you dial up,the reticle will move down, forcing you to aim higher, changing your point of impact upward.

• Riflescope Mounting

To get the best performance from your Cuinfi® 3-9x40 riflescope,proper mounting is essential.Although not difficult,the correct steps must be followed.If you are unsure of your abilities,it would be best to use the services of a qualified gunsmith.

• Rings and Bases

The Cuinfi® 3-9x40 riflescope feature a 1 inch main tube. Be sure to select a base and matching rings appropriate for your riflescope's mount according to manufacturer's instructions.

Tip: Selecting the proper ring height to provide appropriate clearance between the riflescope and any part of the rifle is paramount.The proper height will also allow for a comfortable head position and aid in establishing a solid and consistent shooting position.A ring's height will not have an adverse effect on accuracy and overall range or performance.

• Eye Relief and Reticle Adjustment

After installing the bottom ring halves on the mounting base,place the riflescope on the bottom ring halves and loosely install the upper ring halves.Before tightening the riflescope ring screws,adjust for maximum eye relief to avoid injury.

1. Set the riflescope to its highest magnification.

2. Move the riflescope fore and aft in the rings until you achieve a full,unobstructed sight picture.

3. Without disturbing the fore-aft placement,rotate the riflescope until the reticle is level.Use a leveling tool(s) such as feeler gauges or bubble levels and a plumb bob to aid in this process.

4. After leveling the reticle,tighten and torque the ring screws down per manufacturer's instructions.Use caution and do not over-tighten ring screws.

Key Features

Hunting-Centric Optics

3-9x Variable Magnification: Perfect for mid-range hunting (50-300 yards), switching from 3x for scanning dense forests to 9x for precise target acquisition on distant game.

SFP Metal Reticle: Durable metal construction ensures longevity, with a consistent size across magnification levels—calibrated at 9x for reliable bullet drop and wind holdovers.

Fully Multi-Coated Lens: Reduces glare and enhances light transmission, critical for low-light hunting periods and shaded environments where visibility is limited.

40mm Objective Lens: Gathers ample light to improve image brightness, ensuring clear views of game even in dim conditions.

Precision Adjustments

1/4 MOA Click Value: Fine-tuned elevation and windage adjustments (60 MOA each) for precise zeroing and correction, adapting to varying hunting distances and wind conditions.

Capped Turrets: Protect against accidental adjustments during transport or while navigating rough terrain, preserving zero integrity in the field.

0-Reset Function: Simplifies re-zeroing after adjustments, allowing quick calibration when switching hunting locations or game types.

Durability & Portability

IP67 Waterproof & Dustproof Rating: Withstands rain, dust, and temperature extremes (-30℃ to 50℃), ensuring reliability in harsh outdoor hunting conditions.

Lightweight Design: At 417g and 317mm in length, it minimizes rifle weight, reducing fatigue during long hikes or all-day hunting trips.

Design & Materials

Built for hunting durability, the Dawn 1 Inch Tube Riflescope features Aircraft Grade Aluminium—a lightweight yet strong material resistant to corrosion and impact. The Black Matte Hard Anodized finish provides a non-reflective surface, preventing game from being spooked by glare in open or wooded areas. Its 1 Inch Tube diameter ensures compatibility with standard hunting rifle mounts, making it easy to install on most hunting platforms. The streamlined design omits unnecessary features, focusing on core hunting needs while keeping the optic lightweight. The Fully Multi-Coated Lens works with the 40mm objective to deliver consistent clarity, and the rugged construction ensures it can withstand the rigors of outdoor use.

Application Scenarios

Big Game Hunting: Ideal for pursuing deer, elk, and wild boar, with 3-9x magnification covering typical hunting distances (50-300 yards).

Small Game Hunting: The precise 1/4 MOA adjustments and clear reticle make it suitable for targeting rabbits, squirrels, and other small game.

Backcountry Hunting Expeditions: Lightweight design and IP67 rating excel in remote areas, where portability and durability are essential for long hikes.

Varmint Control: The 9x maximum magnification allows for precise targeting of varmints, protecting crops or livestock from a safe distance.

FAQ

What is the field of view (FOV) at 100 yards?

The FOV ranges from 37.7ft (at 3x) to 12.5ft (at 9x), providing wide scanning coverage at low magnification and narrow precision at high magnification.

Is the Dawn 3-9×40 compatible with standard rifle mounts?

Yes, it features a 1 Inch Tube, compatible with most standard rifle rings and bases. Follow manufacturer guidelines for proper mounting height to ensure clearance.

Does this riflescope require a battery?

No, it uses a non-illuminated Metal Reticle, eliminating the need for batteries and simplifying use in remote hunting areas.