Quick Answer
For optimal accuracy, sight in your .308 Winchester deer rifle at 100 yards using a high-quality scope and a reliable shooting rest to minimize human error and environmental factors.
Choosing the Right Ammunition
When sighting in a .308 Winchester rifle, it’s essential to choose the right ammunition. Opt for a high-quality, match-grade load with a bullet weight between 150-165 grains. These loads typically have a more consistent BC (ballistic coefficient) and are designed for accuracy at longer ranges. Examples of suitable ammunition include Federal Premium 165-grain and Hornady 150-grain InterBond.
Setting Up Your Shooting Rest
To ensure accurate shots, set up a reliable shooting rest that can support your rifle’s weight and keep it stable. Use a shooting table or a bipod with a sturdy base to minimize movement and vibrations. Make sure the rest is level and securely positioned on the ground or a stable surface. For a more precise setup, use a shooting bag or a sling to support the rifle’s weight.
Sight-In Procedure
To sight in your .308 Winchester rifle, follow these steps:
- Place your rifle on the shooting rest at 100 yards.
- Adjust your scope’s elevation dial according to the manufacturer’s guidelines or use a ballistic calculator.
- Fire three shots, and then adjust the scope as needed based on the impact points.
- Repeat the process until you achieve a group size of 1 inch or less at 100 yards.
- Once sighted in, verify the accuracy at longer ranges by firing a few shots at 200-300 yards.
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