Description
Tasco Rimfire 3-9x40 Truplex Rifle Scope TRF3940 is tailored for precision on rimfire rifles. With adjustable magnification from 3x to 9x and a 40mm objective lens, this scope provides versatility for various shooting distances. Fully coated optics enhance light transmission, ensuring clarity in low-light conditions, making it suitable for both dusk hunts and bright days. The Truplex reticle allows for quick target acquisition, benefiting both novice and experienced shooters.
Constructed with a robust one-inch aluminum tube, the TRF3940 is lightweight yet durable, ensuring it withstands outdoor conditions. The scope features a 50-yard parallax setting for increased accuracy, crucial for effective shooting at moderate distances. The matte black finish adds a sleek touch while minimizing glare, ensuring you remain discreet in the field.
Features – Key Benefits Bullets
- BIG-GAME STYLE PERFORMANCE – Optimized for rimfire rifles, delivering a wide field of view and precision aiming.
- ADJUSTABLE 3-9X MAGNIFICATION – Versatile zoom range allows for both close-range and extended-range shooting.
- FULLY COATED OPTICS – Enhances light transmission for a brighter, clearer image in various lighting conditions.
- TRUPLEX RETICLE – A classic, easy-to-use reticle for fast target acquisition and improved accuracy.
- FAST-FOCUS EYEPIECE – Quickly sharpens your sight picture, ideal for rapid adjustments in the field.
- 50-YARD PARALLAX SETTING – Designed specifically for rimfire rifles, ensuring accurate shots at moderate distances.
- DURABLE ONE-INCH TUBE – Lightweight yet sturdy aluminum construction with a sleek matte black finish.
- PRECISE WINDAGE & ELEVATION ADJUSTMENTS – ¼ MOA per click allows for fine-tuned accuracy adjustments.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | TRF3940 |
| Magnification | 3-9x |
| Objective Lens Diameter | 40mm |
| Reticle Type | Truplex |
| Tube Diameter | 1 inch |
| Field of View (@100 yds) | 32-11 ft |
| Lens Coating | Fully Coated |
| Parallax Setting | 50 yards |
| Eye Relief | 3.5 inches |
| Exit Pupil | 14-4.4mm |
| Adjustment Click Value | 0.25 MOA |
| Length | 12.2 inches |
| Weight | 11.6 oz |
| Finish | Matte Black |
What’s in the Box?
- Tasco Rimfire 3-9x40 Truplex Rifle Scope (TRF3940)
- Scope Rings
- Lens Covers
- User Manual
- Warranty Information
Customer Reviews
"This scope is a game-changer for my rimfire rifle. Clear optics and easy to adjust!"
"I love the fast-focus eyepiece; it's perfect for quick shots at the range."
"Excellent value for the price. Highly recommend for anyone looking to upgrade!"
FAQ
What makes the Tasco Rimfire 3-9x40 different from other scopes? This model is specifically designed for rimfire rifles, ensuring optimal performance with a tailored parallax setting and a durable build. Its fully coated optics enhance clarity, making it ideal for various lighting conditions.
How do I maintain my Tasco TRF3940 scope? Regularly clean the lenses with a microfiber cloth and avoid exposing the scope to extreme weather conditions. Always store it in a padded case to protect it from bumps and scratches.
Similar Models
Looking to explore more optics? Check out our extensive collection of Tasco scopes, including the Tasco 4-12x40 for versatile long-range capabilities and the Tasco 3-12x32 for compact hunting solutions. Upgrade your shooting gear and discover exceptional performance across our full collection!
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)