Quick Answer
To zero a .375 H&H scope, start by setting the reticle to match the bullet drop at 100 yards, then adjust for the sight's parallax at that range. Use a chronograph to ensure the load's velocity is consistent. Make adjustments in 0.25 MOA increments.
Preparing the Rifle
Before zeroing your .375 H&H, ensure the rifle’s action is properly bedded and the stock is free-floated. Check the scope’s reticle to confirm it matches the bullet’s trajectory. Set the scope’s magnification to 2x, as this range will provide the most accurate sight picture.
Zeroing Process
Begin by setting the reticle to match the bullet drop at 100 yards, using a ballistic calculator or a shooting guide to determine the precise point of aim. Adjust the scope’s elevation in 0.25 MOA increments, firing three-shot groups at each adjustment. Once the reticle is centered on the target, adjust for the sight’s parallax at 100 yards.
Parallax Adjustment
To adjust for parallax, look through the scope and adjust the parallax knob until the reticle appears sharp and stationary. This should be done at 100 yards, as this is the most critical range for zeroing a .375 H&H. Use a chronograph to ensure the load’s velocity is consistent, and make adjustments as necessary to match the ballistic calculator’s predictions.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.