Description
The March High Master 48x52mm riflescope is designed specifically for Benchrest shooters. The fixed 48x magnification allows for extreme detail of the target and the internal scope design ensures that unintentional shift in the scope’s point of impact is impossible. March High Master 48x52mm riflescope is built on a 30mm main tube and the lenses are made from Super Extra-Low Dispersion and High-Refractive optical glass! With its exact 1/8 MOA adjustments, superb glass, and high magnification – the March High Master 48x52mm riflescope will help dominate your next Benchrest rifle shoot.
Features of the March High Master 48x52mm riflescope
- Precise 1/8 MOA Adjustments
- ED & High Refractive Lenses
- Capped Turrets
Specifications
SKU
D48F52-LR-March
UPC
4570058001312
MPN
D48F52-LR
Exit Pupil
1.08mm
Eye Relief
2.6-3.19in
Field of View
2.7ft at 100yds
Illuminated Reticle
No
Magnification Range
48x
Parallax Adjustment
Side focus 10yds - infinity
Reticle Position
Second Focal Plane
Elevation Turret Details
60MOA
Scope Finish
Black
Scope Length
14.57"
Scope Objective Diameter
52mm
Reticle Details
LR Reticle
Scope Tube Size / Mount
30mm
Turret Adjustment (Click Value)
1/8MOA
Scope Weight
22.75oz
Windage Turret Details
60MOA
Item Condition
New
Product Type
Riflescopes
Scope Turret Rotation
Counter Clockwise (CCW)
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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)