Quick Answer
Adjust the trigger pull on your 8x57 Mauser by first ensuring the rifle is set to a safe condition, then using a trigger pull gauge to measure the weight. Next, you'll need to adjust the trigger's overtravel stop and sear engagement to achieve your desired pull weight.
Setting Up the Trigger Gauge
To adjust the trigger pull on your 8x57 Mauser, you’ll need a trigger pull gauge, which can be purchased at most gunsmithing supply stores or online. These gauges typically measure the force required to pull the trigger, allowing you to set a specific weight. For hunting deer, a trigger pull of 2-3 pounds is often preferred, as it provides a smooth, consistent release.
Adjusting the Overtravel Stop
To adjust the overtravel stop, locate the small screw located at the rear of the trigger. This screw controls the distance the trigger travels before the sear releases the firing pin. Loosen the screw with a small flathead screwdriver, then carefully turn it clockwise until the overtravel stop is set at the desired position. For a 2-3 pound trigger pull, aim for an overtravel stop setting of 1/8 inch to 1/4 inch.
Setting the Sear Engagement
To adjust the sear engagement, you’ll need to access the sear spring, which is usually located at the rear of the trigger assembly. Use a small screwdriver to loosen the screw holding the sear spring in place, then carefully turn the spring clockwise until the sear engages the firing pin at the desired position. For a 2-3 pound trigger pull, aim for a sear engagement setting that requires 1-2 pounds of pressure to release the firing pin.
Final Check
Once you’ve adjusted the overtravel stop and sear engagement, use the trigger pull gauge to re-measure the weight and ensure it meets your desired setting. If necessary, make further adjustments to the overtravel stop and sear engagement until the trigger pull weight is within the desired range.
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