Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) Review

The Honest Truth About the Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP)

As an equipment specialist who’s seen it all, from freezing alpine expeditions to the controlled chaos of a busy workshop, I approach new gear with a healthy dose of skepticism and a deep well of experience. When I first encountered the Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP), my interest was immediately piqued. Trijicon has a reputation for building optics that can endure the harshest conditions, and this particular model promised a blend of tactical functionality and premium optical quality.

My own need for a versatile, high-magnification scope that could perform across various distances and light conditions had become pressing. I was working on a custom rifle build intended for long-range target practice and potential long-range hunting scenarios, and my existing optics just weren’t cutting it for the required precision and clarity. I’d been considering other high-power scopes, but they either felt fragile or lacked the robust adjustment systems I needed. The Trijicon, with its substantial build and established pedigree, felt like a significant step up from some of the more budget-friendly options I’d glanced at, like certain Vortex models that, while capable, didn’t quite project the same level of bombproof construction.

Upon receiving the Tenmile, my initial impression was one of solid reassurance. The scope possesses a heft that speaks of quality materials and precise engineering. The anodized finish is smooth and matte, designed to minimize glare, and the entire unit feels incredibly robust, as if it could shrug off a fall onto rough terrain without a second thought. It’s an immediate feeling that this optic is built to be used, not just admired.

Real-World Testing: Putting Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) to the Test

First Use Experience

My initial testing of this Trijicon scope took place primarily on a static rifle range, but I also incorporated it into a demanding field exercise simulating early morning and late evening hunting conditions. The setup process was straightforward; the 30 mm tube offered ample mounting surface, and the included lens caps (though not flip-up) provided decent protection during transport. The tactile feedback from the magnification ring and the elevation/windage turrets was crisp and precise, immediately instilling confidence in its adjustability.

During extended shooting sessions, I found the 4-24x magnification range to be incredibly useful. I could easily dial in for precise shots at 100 yards and then crank it up to gain clear detail on targets at 600 yards and beyond. The second focal plane (SFP) reticle remained consistent in its subtensions across the magnification range, which is crucial for accurate ranging and holdovers at various distances. Even in less-than-ideal lighting, the extra-low dispersion glass and fully multi-coated optics worked their magic, delivering a bright, clear image with true color rendition.

Extended Use & Reliability

After several months of consistent use, the Tenmile scope has proven to be exceptionally reliable. It’s been subjected to the vibrations of numerous rifle firings, accidental bumps against range benches, and a few excursions through brush and light rain. There are no signs of internal fogging, no looseness in the turrets, and the magnification adjustment remains smooth and consistent.

Cleaning is simple; the exterior is easily wiped down, and the lenses benefit from standard optical cleaning techniques. The waterproof and fogproof ratings (rated to 10 ft) were put to the test during an unexpected downpour, and the optic remained completely unaffected. Compared to other scopes in its class that I’ve used, this Trijicon feels like it could easily outlast them, especially given its ruggedized design that’s reportedly tested to military standards. The scratch-resistant Tritium lens coating also seems to be living up to its name, as the lenses have maintained their pristine clarity despite regular handling.

Breaking Down the Features of Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP)

Specifications

The Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) is a feature-rich optic built for serious use. Its 50mm objective lens diameter is substantial, designed to gather as much light as possible, especially at higher magnifications. The variable 4-24x magnification offers incredible versatility, from close-quarters engagement to extreme distance precision.

The MRAD Ranging reticle, located on the second focal plane, is a key component for accurate shooting. This means the subtensions remain constant regardless of magnification, allowing for reliable ranging and holdovers throughout the power range. Adjustment is done in 0.1 Mil Rad increments, providing fine-tuning capabilities, and the total W/E travel at 100 Yds is 20.4/29.1 Mil Rad, offering substantial adjustment range.

The 30 mm tube diameter contributes to its overall robustness and provides a generous adjustment range. Eye relief is a comfortable 3.1-3.8 inches, crucial for managing recoil on larger caliber rifles. The scope weighs in at 25.7 oz, which, while not feather-light, is perfectly acceptable for an optic of this capability and build quality. Its construction from 6061-T6 Aluminum is standard for premium optics and ensures durability.

Parallax adjustment is adjustable from 10 yards to infinity, allowing for clear focus at any practical shooting distance. The illuminated reticle features 10 brightness settings with an “off” position between each, powered by a common CR2032 battery, offering approximately 68 hours of battery life on a single cell. Its operating temperature range of -20 to 140 Fahrenheit is indicative of its all-weather design.

Performance & Functionality

In terms of core functionality, this Trijicon scope excels. The edge-to-edge clarity provided by the fully multi-coated, broadband, anti-reflective glass is truly impressive. Details remain sharp and colors are true even when pushed to the maximum 24x magnification. The extra-low dispersion glass minimizes chromatic aberration, which is particularly noticeable at higher powers.

The MRAD reticle is well-designed for tactical and long-range applications. The clean lines and well-spaced stadia lines make it easy to acquire targets quickly and accurately estimate range. The illuminated reticle is a significant asset, providing a visible aiming point in low light without washing out the target. The ability to dial in adjustments with precision thanks to the 0.1 Mil Rad clicks is exactly what you’d expect from a scope of this caliber. It consistently performs where it counts: putting rounds on target with remarkable accuracy.

Design & Ergonomics

The design of the Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) is clearly focused on rugged functionality. The matte black finish is non-reflective and resists fingerprints reasonably well. The magnification ring has a prominent, but not excessive, lever that can be repositioned to accommodate different shooting stances and rifle configurations, a feature I found surprisingly useful.

The turrets offer positive tactile feedback with each click, and the knurling provides a good grip, even with gloves on. While the product description mentions a zero stop adjuster, the specific model I tested had capped turrets which provided a very secure lock once zeroed. This is a minor point, but the capped turrets offer excellent protection against accidental bumps that could knock your zero. The overall feel of the optic is one of robust construction, built to withstand the rigors of demanding environments.

Durability & Maintenance

Based on my experience and Trijicon’s reputation, durability is a major selling point for this optic. The 6061-T6 aluminum construction and robust sealing mean it’s built to last. I have not encountered any issues with structural integrity, even when subjected to jarring recoil.

Maintenance is straightforward; regular lens cleaning and ensuring the battery compartment is secure are the primary needs. The waterproof rating means you don’t have to baby it in adverse weather. The fogproof nature is also a critical advantage, preventing frustrating internal condensation during rapid temperature changes. I anticipate this scope will serve for many years with proper care.

Accessories and Customization Options

The package contents for the Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) are rather minimalist, which is common for higher-end optics. It primarily includes the scope itself, likely with basic lens covers. While this is functional, the absence of tool-less adjustment turrets (the ones tested had caps) or an integrated throw lever for the magnification ring are slight omissions.

However, the 30 mm tube is a standard size, meaning a vast array of aftermarket scope rings and mounts are compatible. This allows for significant customization regarding how the scope is mounted to your rifle, including options for different heights, offsets, and integrated levels. The repositionable magnification lever is a thoughtful design element that offers a degree of “customization” out of the box for shooter preference.

Pros and Cons of Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP)

Who Should Buy Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP)?

This Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) is ideally suited for shooters who demand reliability and optical performance in challenging environments. It’s a fantastic choice for long-range precision shooters, hunters operating in varied terrain and light conditions, and tactical marksmen who need an optic that can withstand abuse. If you’re building a rifle for serious use where failure is not an option, this scope is a strong contender.

Those who might want to reconsider are shooters on a very tight budget or those who prioritize extreme lightweight optics above all else. If your primary need is for a casual plinking rifle or an air rifle, you might find this optic to be overkill. For maximizing its potential, I’d recommend pairing it with a quality set of 30 mm scope rings and a robust scope mount, along with a reliable red dot sight if quick, close-quarters acquisition is also a consideration.

Conclusion on Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP)

The Trijicon Tenmile TM2450 4-24x50mm Rifle Scope, 30 mm Tube, Second Focal Plane (SFP) stands out as a truly exceptional piece of gear. It successfully balances high-magnification capability with the ruggedness and optical fidelity that Trijicon is known for. The clarity of the glass, the precision of the adjustments, and the overall bulletproof construction make it an excellent value, even at its $1489.00 price point.

While it might lack some of the bells and whistles found on more “tacti-cool” options, its core performance and unwavering reliability are undeniable. For anyone serious about their shooting, whether on the range or in the field, this Trijicon optic is a highly recommended investment that will not disappoint. It’s a workhorse that delivers premium performance when you need it most.