Introduction
The Savage MkII rifle holds a special place in the hearts of many shooting enthusiasts. Renowned for its affordability, accuracy, and versatility, it has become a popular choice for target shooting, small game hunting, and recreational plinking. However, like any precision instrument, the barrel of a Savage MkII can wear out over time, leading to a decline in accuracy and performance. Fortunately, barrel replacement on a Savage MkII is a relatively straightforward process, thanks to its user-friendly design. This comprehensive guide will walk you through every step of the process, ensuring you can restore or even enhance the performance of your beloved rifle.
Understanding the Savage MkII
A deeper understanding of the Savage MkII’s design is beneficial before diving into the replacement procedure. The rifle’s action, a key component, is where all the magic happens. The bolt, when manipulated, loads a fresh cartridge from the magazine, seals the firing chamber, and enables the firing pin to strike the primer, initiating the shot. The barrel, screwed into the receiver, guides the bullet as it travels down the bore.
One of the defining features of the Savage MkII is its barrel nut system. This clever design allows for easier barrel changes than many other rifles. The barrel is secured to the receiver using a threaded nut, making it simpler to remove and install barrels without extensive gunsmithing expertise. This is a major advantage, enabling owners to swap barrels for different calibers, lengths, or profiles, offering a higher degree of customization.
Before you begin, it’s crucial to understand the nuances of the various MkII models available. Differences exist in the stock configurations, magazine types, and minor design aspects. However, the barrel attachment method generally remains the same across most models, making this guide applicable to a wide range of Savage MkII rifles. Review your rifle’s specific model details to ensure compatibility with your chosen replacement barrel.
Choosing the Right Barrel
Selecting the appropriate replacement barrel is a critical step in the process. The choice of barrel significantly impacts the rifle’s performance.
Barrel Types
Numerous barrel types are available, each with its own advantages and disadvantages. Carbon steel barrels are a more affordable option and offer excellent accuracy. However, they are more prone to rust and corrosion and require more diligent maintenance. Stainless steel barrels are more resistant to rust and corrosion, making them a good choice for humid environments or shooters who prefer less demanding maintenance. They often come with slightly higher price tag. Aftermarket barrels often provide enhanced accuracy and features.
Factors to Consider
Beyond material, consider several factors when choosing a barrel. Caliber is perhaps the most obvious. Ensure your chosen barrel is chambered for the same caliber as your ammunition. Barrel length affects bullet velocity and accuracy. A longer barrel usually provides a slight increase in velocity, but also makes the rifle heavier and less maneuverable. The profile or shape of the barrel influences its weight and heat dissipation characteristics. Heavier, thicker barrels generally handle heat better and offer greater stability during prolonged shooting. Finally, the twist rate, which is the rate at which the rifling inside the barrel spins the bullet, is crucial for optimal accuracy. Selecting the correct twist rate depends on the bullet weight you intend to use. Matching the twist rate to your chosen ammunition is vital for achieving the best results.
Recommendations
Consider your shooting needs and goals when selecting a replacement barrel. If you primarily shoot at the range, a heavier, target-oriented barrel might be ideal. For hunting, a lighter, shorter barrel may be more practical.
Required Tools and Supplies
Before you begin the process, gather all the necessary tools and supplies to ensure a smooth and efficient replacement.
Tool List
A specialized barrel wrench is essential for removing and installing the barrel nut. The correct barrel wrench will fit precisely onto the barrel nut and provide leverage for loosening and tightening it. An action wrench is required to secure the receiver, preventing it from moving during the barrel nut removal and installation process. A torque wrench is used to precisely tighten the barrel nut to the manufacturer’s specified torque setting. This ensures proper barrel seating and accuracy. A set of headspace gauges is necessary to verify that the distance between the bolt face and the chamber shoulder is within the acceptable range. These gauges are vital for proper and safe function. Additionally, you’ll need punches for any pin removal, lubricants such as grease or gun oil, and cleaning supplies to keep your new barrel in optimal condition.
Tool Selection
When selecting tools, opt for quality products that are designed specifically for gunsmithing. Proper tools prevent damage to your rifle and improve the overall ease of the replacement.
Supplies
The barrel itself, of course, is the primary supply. Ensure the new barrel is of high quality and compatible with your rifle’s action.
Safety Precautions
Safety should be your paramount concern throughout the barrel replacement process.
Safety Guidelines
Always ensure your rifle is completely unloaded. Remove the magazine and verify that the chamber is empty by visually inspecting it. Wear safety glasses to protect your eyes from any debris that may be dislodged during the process. Gloves can improve your grip and protect your hands from potential cuts or abrasions. Choose a well-lit, organized workspace. This allows you to see what you are doing and minimizes the risk of losing small parts. Avoid distractions and focus on each step of the procedure.
Removing the Old Barrel
Now, we’ll delve into the step-by-step process of replacing the barrel on your Savage MkII.
Disassembly
Start by removing the stock from the action. This typically involves unscrewing the stock’s attachment screws, usually located on the bottom of the stock. Gently separate the stock from the action. Then, remove the bolt and magazine, if present. This removes potential obstructions and ensures safety.
Securing the Action
Secure the action using the action wrench. Place the action wrench around the receiver and tightly clamp it. This provides a stable base for working and prevents the action from rotating when loosening or tightening the barrel nut.
Loosening the Barrel Nut
Use the barrel wrench to loosen and remove the barrel nut. Fit the barrel wrench onto the barrel nut and apply force in the appropriate direction (usually counterclockwise). You may encounter some resistance initially, as the nut has been tightened over time. If needed, use a penetrating oil to help loosen a stuck nut.
Removing the Barrel
Unscrew and remove the old barrel from the action. Carefully unscrew the barrel from the receiver, paying attention to the alignment. Once the barrel is completely free, gently remove it.
Installing the New Barrel
Now, let’s get the new barrel installed.
Barrel Installation
Thread the new barrel into the action. Carefully thread the new barrel into the receiver by hand, ensuring it aligns properly. Avoid cross-threading the barrel.
Torquing the Nut
Install the barrel nut and then tighten it down to the proper torque using the torque wrench. Refer to the manufacturer’s specifications for the correct torque value, as this is important.
Headspace Check
Performing a headspace check is essential to ensure the rifle functions safely and accurately.
What is Headspace?
Headspace refers to the distance between the bolt face and the chamber’s shoulder. Proper headspace is crucial for ensuring safe and consistent ignition of the cartridge.
Using Headspace Gauges
Use headspace gauges to check the headspace. Insert the “Go” gauge into the chamber and close the bolt. If the bolt closes completely, the headspace is within acceptable limits. If the bolt doesn’t close, the headspace is too tight and may require adjustments. Next, insert the “No-Go” gauge. The bolt should not fully close. If it does, this indicates excessive headspace, which could be unsafe.
Adjusting Headspace
Adjust the barrel nut if needed. If the headspace needs adjustment, the barrel nut can be slightly tightened or loosened to change the barrel’s seating position within the receiver. Small adjustments are typically sufficient to resolve headspace issues. Re-check the headspace after any adjustments are made.
Reassembly and Final Checks
Finally, we’ll complete the reassembly and perform a final inspection.
Reassembling the Bolt and Magazine
Reassemble the bolt and magazine. Reinstall the bolt into the action and insert the magazine. Check to ensure the bolt functions correctly and the magazine feeds properly.
Reinstalling the Stock
Reinstall the stock. Carefully reattach the stock to the action and tighten the stock attachment screws. Double-check all screws to ensure they are snug.
Final Inspection and Functionality Test
Perform a final inspection. Ensure all parts are correctly installed. Verify the trigger functions correctly. Check that the safety operates as it should. Cycle the bolt to ensure it moves smoothly.
Post Replacement Considerations
Once the barrel replacement is complete, there are a few additional considerations to keep in mind.
Break-In Procedures
Break-in procedures help to condition the new barrel’s bore, which improves accuracy and longevity. Following the manufacturer’s recommendations for barrel break-in is essential.
Cleaning and Maintenance
Cleaning and maintenance will maintain the accuracy and extend the barrel’s lifespan. Cleaning the bore regularly, especially after shooting, is critical. Properly lubricate the rifle and store it in a safe and dry location.
Zeroing the Scope/Sights
If you have a scope or sights mounted on your rifle, zeroing them is essential to align the point of impact with the point of aim. Adjust your scope or sights to zero the rifle accurately.
Troubleshooting
Occasionally, problems may arise during or after a barrel replacement.
Common Problems
One common issue is a barrel nut that is too tight. Use a penetrating oil, apply more leverage, or use a breaker bar to loosen it. Another problem might be an incorrect headspace, which you would address using the headspace gauges. Finally, the rifle might exhibit poor accuracy. Verify the barrel nut torque, make sure the action is properly bedded, and consider changing your ammunition type.
Conclusion
Replacing the barrel on a Savage MkII is a valuable skill that any owner can learn. By carefully following these steps and paying attention to safety, you can successfully restore or enhance your rifle’s performance. Remember to take your time, and don’t hesitate to consult resources. Enjoy the benefits of your enhanced Savage MkII and the satisfaction of a job well done. For more in-depth information and troubleshooting advice, consider visiting online forums, websites dedicated to gunsmithing, or contacting a qualified gunsmith.
