Carry Zero vs. Training Zero
Roger Barrera of QVO Tactical demonstrates the critical importance of understanding and accounting for ammunition-specific zero points when using different loads for carry versus training. By zeroing his CT2X optic with 90 grain +P Blue Line carry ammunition at 10 yards and then observing the significant impact shift with 124 grain training ammunition, he highlights the practical necessity of using separate witness marks on optics to ensure accurate shot placement for each ammunition type. This instructional insight, supported by visual evidence of distinct groupings, emphasizes a key aspect of effective firearm proficiency.












