Quick Answer
Modifying the .458 Lott rifle for enhanced accuracy involves installing a high-quality, heavy-duty barrel with a consistent rifling pattern, adjusting the trigger pull to 2.5 pounds or less, and employing precision ammunition with a long ogive bullet profile.
Barrel Selection and Installation
When upgrading a .458 Lott barrel, consider installing a heavy-duty, 26-inch barrel with a consistent rifling pattern and a 1:10 twist rate. This twist rate is suitable for bullets weighing 500 grains or more. The heavier barrel provides stability and reduces vibration, contributing to enhanced accuracy. Ensure the barrel is properly installed and bedded to prevent movement and ensure a solid shot.
Trigger Pull Adjustment
A crisp, light trigger pull is essential for accuracy. Adjust the trigger pull to 2.5 pounds or less, taking care not to compromise the rifle’s safety. A lighter trigger pull allows for more precise control over the rifle’s movement, enabling a more accurate shot. Consult the rifle’s manual or seek the assistance of a gunsmith to adjust the trigger pull.
Ammunition Selection
Select precision ammunition featuring a long ogive bullet profile. Bullets with a longer ogive and smaller meplat are more aerodynamic and provide improved accuracy. Look for ammunition with a muzzle velocity of at least 2,000 feet per second and a consistent ballistic coefficient. Examples of suitable ammunition include the 500-grain bullets from Hornady and Nosler, which are designed for long-range accuracy and large game hunting.
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