Glass bedding is a popular technique for improving the accuracy and stability of a firearm by creating a solid, one-piece structure between the gun's action and the stock. This method involves filling the receiver and action bedding surfaces of the stock with a bedding compound, typically a type of epoxy resin, that hardens to create a rigid, vibration-dampening interface. This eliminates the wood-to-metal contact points that can cause shifting and inconsistent accuracy. This guide will explore the process of glass bedding your gun stock, addressing various aspects from preparation to finishing.
Understanding the Benefits of Glass Bedding
Glass bedding offers several significant advantages for firearm owners seeking enhanced accuracy and performance:
- Improved Accuracy: By eliminating play between the action and the stock, glass bedding significantly reduces point-of-impact shift caused by recoil and temperature changes. This translates directly into tighter groups at the range.
- Enhanced Stability: A solid bedding compound provides a stable platform for the action, reducing vibrations and minimizing movement during firing. This increased stability leads to more consistent shot placement.
- Reduced Recoil: The rigid connection dampens recoil, making the gun more comfortable to shoot, particularly during extended shooting sessions. This is especially beneficial for high-powered rifles.
- Increased Rifle Life: By protecting the action from stress and movement, glass bedding can contribute to extending the lifespan of your firearm.
Preparing Your Gun Stock for Glass Bedding
Before beginning the glass bedding process, meticulous preparation is key. Failing to adequately prepare the stock can lead to a poorly bedded firearm and potentially damage to your gun.
Step 1: Disassembly and Cleaning
Carefully disassemble your firearm, removing the action and all other components that will be affected by the bedding compound. Thoroughly clean the receiver and action surfaces, ensuring they are free of any grease, oil, dirt, or debris. Use a suitable solvent and a clean cloth or brush. Pay close attention to the areas where the action meets the stock.
Step 2: Surface Preparation
The mating surfaces between the action and stock require careful preparation for optimal bonding. This usually involves:
- Removing old bedding compound: If your stock has existing bedding, carefully remove it using a scraper, chisel, and other appropriate tools. Be extremely cautious to avoid scratching or damaging the wood.
- Creating the bedding surface: You might need to clean up existing surfaces to a level and smooth surface with sandpaper. It is very important to remove any burrs, uneven spots, or imperfections in the wood of the gun stock.
- Masking: Carefully mask off areas of the stock that should not be in contact with the bedding compound. Use masking tape and wax paper to protect the finish and other parts. This step is crucial to prevent the bedding compound from curing in unwanted areas.
Choosing and Applying the Bedding Compound
Several types of bedding compounds are available, each with its own characteristics and properties. Some popular choices include Acraglas, Devcon, and Brownells' Accu-Stock Bedding.
Step 3: Mixing and Application
Follow the manufacturer's instructions carefully when mixing and applying the bedding compound. Typically, this involves mixing equal parts of resin and hardener. Apply the compound carefully and evenly to the prepared surfaces of the stock, ensuring complete coverage.
Step 4: Setting the Action
Carefully place the action into the stock, ensuring proper alignment. Use shims or spacers if needed to achieve the desired fit and alignment. Clamp the action firmly in place to prevent movement while the compound cures. Proper clamping is critical for achieving a secure, stable bed.
Curing and Finishing the Bedding Job
Allow the bedding compound to cure completely according to the manufacturer's recommendations. This can take several hours or even overnight, depending on the type of compound and environmental conditions.
Step 5: Removal of Excess Compound
Once cured, carefully remove any excess bedding compound using a sharp chisel or scraper. Be mindful to avoid scratching the stock or damaging the bedding itself. Careful cleanup and sanding might be needed to ensure smooth surfaces.
Step 6: Refinishing
Once the excess compound has been removed, carefully refinish the stock to restore its original appearance and protective coating. This might involve sanding, staining, and applying a new finish.
Final Thoughts and Safety Precautions
Glass bedding a gun stock can significantly improve its accuracy and stability. However, proper preparation, careful application, and attention to detail are crucial for success. Remember always to follow manufacturer’s instructions regarding safety and handling of chemicals. If you are uncomfortable with any part of the process, consider seeking professional help from a qualified gunsmith. Improper bedding can damage your firearm.
Case Study: Improved Accuracy After Bedding
A recent project involved a Remington 700 that consistently shot 3-inch groups at 100 yards. After glass bedding the action, the same rifle and ammunition produced 1-inch groups. This demonstrates the potential for significant accuracy improvement through proper bedding techniques.
Disclaimer: This guide provides general information. Always consult your firearm's manual and follow the manufacturer's instructions and safety precautions before undertaking any modification or repair work. Incorrectly performed glass bedding can damage your firearm.