First Impressions of Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope promises rugged performance at a competitive price. This scope immediately caught my eye due to its adjustable objective (AO) feature, a rarity in scopes at this price point, offering parallax correction for enhanced accuracy.
My aging eyes have been struggling with clarity at varying distances, a common problem for many shooters. The AO functionality of this scope seemed like a potential solution. After years of using high-end optics on my primary rifles, I needed an affordable option for a dedicated .22LR rifle I was building for small game hunting and target practice. I have always been skeptical of budget optics, so I decided to test this one.
Unboxing the Nikko Stirling Mountmaster, I was initially surprised by the solid feel of the 1-inch tube. The matte black finish is clean and functional, if not particularly flashy. Compared to my Leupold VX-3i and Vortex Diamondback Tactical scopes, the Mountmaster felt noticeably lighter and less refined, but still seemed robust enough for a rimfire rifle. I chose this over a similar BSA scope because of Nikko Stirling’s reputation for decent glass, and over a Simmons scope due to the Mountmaster’s included mounts. My initial impression was cautiously optimistic, intrigued by the features offered at such an accessible price.
Real-World Testing: Putting Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope to the Test
First Use Experience
I mounted the Nikko Stirling Mountmaster on my Ruger 10/22 and headed to my local outdoor range. It was a slightly overcast day, with temperatures hovering around 50 degrees Fahrenheit.
The range has distances from 25 to 100 yards. Adjusting the parallax was straightforward, and I quickly dialed in the image clarity at 50 yards. I experienced some initial struggles zeroing the scope, with the adjustments feeling mushy, not as defined as I am used to. However, after a few shots I was able to get the scope dialed in.
Extended Use & Reliability
After several weeks of regular use, the Mountmaster has proven to be a surprisingly reliable companion on my .22LR. I’ve taken it on several small game hunts in varying weather conditions.
It has seen light rain and some dusty trails. The scope still looks and performs as it did on day one, with no noticeable wear and tear. Cleaning is a breeze, usually just a quick wipe-down with a microfiber cloth. While it doesn’t quite match the optical clarity or ruggedness of my higher-end scopes, the Nikko Stirling Mountmaster has definitely exceeded my expectations for a budget-friendly optic.
Breaking Down the Features of Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope
Specifications
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope boasts several features that make it a contender in the budget optic market. It features a fixed 6x magnification, which is ideal for typical rimfire ranges.
- Objective Lens Diameter: 40 mm. This provides a good balance of light gathering and a compact profile.
- Magnification: 6 x. Fixed magnification simplifies use and is suitable for most .22LR applications.
- Reticle: 1/4 MOA. Provides accurate adjustments for zeroing and holdover.
- Tube Diameter: 1 in. Standard size, making it compatible with a wide range of mounts.
- Eye Relief: 3.3 in. Offers comfortable eye relief for most shooters.
- Parallax: 9.1 m to Infinity. The adjustable objective allows for sharp images at varying distances, crucial for accuracy.
- Optical Coating: Multi-Coated. Enhances light transmission and image clarity.
- Weather Resistance: Yes (Waterproof, Fogproof, Shockproof). Ensures reliable performance in various conditions.
- Adjustment Click Value: 1/4 MOA. Standard adjustment value for precise aiming.
These specifications, particularly the adjustable objective and weatherproof construction, are what set the Mountmaster apart. They provide practical functionality at an accessible price point.
Performance & Functionality
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope performs admirably for its intended purpose. The 6x magnification provides a clear and detailed view of targets at typical rimfire distances.
The adjustable objective (AO) is a standout feature, allowing for parallax correction and a sharp image at various ranges. The 1/4 MOA adjustments, while not as crisp as those on higher-end scopes, are adequate for zeroing and making minor adjustments in the field. The scope’s main weakness is the clarity of the glass; it isn’t on par with high end scopes. However, given the scope’s price point, its performance is quite acceptable.
Design & Ergonomics
The Mountmaster features a straightforward and functional design. The matte black finish is understated and blends well with most rifles.
The scope is relatively lightweight, adding minimal bulk to the rifle. The included mounts are a welcome addition.
Durability & Maintenance
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope appears to be reasonably durable for its price. The waterproof, fogproof, and shockproof construction provides peace of mind in varying conditions.
Maintenance is simple, requiring only occasional cleaning of the lenses. Given its budget-friendly construction, I wouldn’t expect it to withstand extreme abuse, but for typical recreational shooting and hunting, it should hold up well.
Accessories and Customization Options
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope comes with basic 3/8” dovetail mounts, suitable for most rimfire rifles. There are no other included accessories.
Being a 1-inch tube scope, it is compatible with a wide array of aftermarket rings and bases. The standard reticle design doesn’t offer much in the way of customization.
Pros and Cons of Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope
Pros
- Affordable Price Point: Excellent value for money, making it accessible to budget-conscious shooters.
- Adjustable Objective (AO): Allows for parallax correction and sharp images at varying distances.
- Waterproof, Fogproof, and Shockproof: Ensures reliable performance in various weather conditions.
- Lightweight Design: Adds minimal bulk to the rifle.
- Included Mounts: Simplifies the mounting process.
Cons
- Glass Clarity: Optical quality is not on par with higher-end scopes.
- Adjustment Turrets: Clicks are not as precise or tactile as those on more expensive scopes.
Who Should Buy Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope?
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope is perfect for:
- Budget-conscious shooters seeking a functional optic for rimfire rifles.
- Hunters looking for an affordable scope for small game hunting.
- Recreational shooters wanting a reliable and adjustable optic for target practice.
This scope is NOT ideal for:
- Those who demand top-tier optical clarity and precision adjustments.
- Shooters engaging in long-range or precision shooting where more advanced features are required.
A must-have accessory would be a good set of lens covers to protect the glass when not in use.
Conclusion on Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope
The Nikko Stirling Mountmaster 6×40 AO, 1in Tube Rifle Scope offers a compelling value proposition. It provides essential features like an adjustable objective and weatherproof construction at an incredibly affordable price.
While it doesn’t compete with high-end optics in terms of glass clarity or adjustment precision, it delivers solid performance for its intended purpose. At a price of $58.14, this scope is hard to beat.
I would definitely recommend the Nikko Stirling Mountmaster to anyone seeking a budget-friendly optic for their rimfire rifle. It’s a practical and reliable option that won’t break the bank. If you’re looking for an optic to put on your .22LR, this is worth a look!