sighting in a. 308 at 25 yards and 50 yards is an important step in ensuring the accuracy and reliability of your rifle. By verifying the zero of your rifle at both distances, you can be. Some people zero at 100 yards,. dec 24, 2011 · i usually shoot my rr. 308 between 100 and 300 yard about 95% of the time. A 100 yard zero only needs about 5 minutes to reach out to 300 yds with a 20 inch. jan 13, 2011 · with a 168 grain bullet…