MOA vs MRAD — Which Reticle System Should I Choose?
Neither is objectively better — both measure angles for adjusting bullet impact. MOA (Minutes of Angle) works in inches and is more intuitive for shooters who think in imperial units: 1 MOA equals approximately 1 inch at 100 yards. MRAD (Milliradians) works in a base-10 system: 1 MIL equals 3.6 inches at 100 yards, and adjustments are in 0.1 MIL increments. MRAD is becoming the standard for precision shooting because the math is simpler at any distance.
Why It Matters
Your reticle system determines how you communicate with spotters, make holdover adjustments, calculate range, and dial corrections for wind and elevation. Once you invest in one system — buying scopes, turrets, ballistic calculators, and data cards — switching is expensive and confusing. Choose one system and stick with it across all your optics.
The Detail
MOA (Minutes of Angle):
- 1 MOA = 1.047 inches at 100 yards (most round to 1 inch)
- Turret clicks: typically 1/4 MOA (0.25 inches at 100 yards)
- At 100 yards: 1 click = 0.25 inches
- At 200 yards: 1 click = 0.50 inches
- At 500 yards: 1 click = 1.25 inches
- Advantage: intuitive in inches — easy to understand for American shooters
- Disadvantage: math gets awkward at non-100-yard distances
MRAD (Milliradians):
- 1 MIL = 3.6 inches at 100 yards
- Turret clicks: typically 0.1 MIL (0.36 inches at 100 yards)
- At 100 yards: 1 click = 0.36 inches
- At 200 yards: 1 click = 0.72 inches
- At 500 yards: 1 click = 1.80 inches
- Advantage: base-10 math scales linearly at any distance
- Disadvantage: less intuitive initially for imperial-unit thinkers
Why MRAD is trending:
- Military and law enforcement worldwide use MRAD
- Simpler math for field calculations and range estimation
- Easier spotter-shooter communication (3.2 MIL left vs 10.75 MOA left)
- Most precision rifle competitions use MRAD
- Newer shooters learning from modern resources learn MRAD first
Why some prefer MOA:
- Already trained in MOA and have MOA scopes
- Thinking in inches is more natural
- Common in hunting optics
- Finer adjustments: 1/4 MOA (0.26 inches at 100) vs 0.1 MIL (0.36 inches at 100)
Critical rule: Match your turrets to your reticle
- MOA reticle with MOA turrets
- MRAD reticle with MRAD turrets
- NEVER buy a scope with mismatched reticle and turret systems — this makes field math a nightmare
Ranging with your reticle:
- Both MOA and MRAD reticles can estimate target distance
- MRAD formula: distance (meters) = target size (meters) × 1,000 ÷ MIL reading
- MOA formula: distance (yards) = target size (inches) × 95.5 ÷ MOA reading
- MRAD formula is simpler, especially in metric
Build Impact
For a first precision rifle scope, go MRAD — it is the modern standard, and most training resources, ballistic apps, and competition formats use it. If you already have MOA scopes and years of MOA experience, there is no reason to switch. The most important thing is consistency: pick one system and use it on every optic you own.