A series of cascading dots to the left and right of the reticle help compensate for crosswinds
The dots represent a 10 mph crosswind (+/- 1.5" at 400 yd.) for most hunting cartridges.
For a 5 mph crosswind, halve the distance between dot and reticle
For 20 mph crosswind, simply double the distance
Features of Burris Fullfield E1 3x-9x50mm Riflescope w/Ballistic Plex E1 Reticle 200330:
Posi-Lock is a coil-spring assisted retractable steel post that firmly and & securely locks accuracy into place.
Purged at least 24 times with high quality, laboratory grade dry nitrogen. Each nitrogen cycle absorbs airborne and residual surface moisture that is evacuated from the scope
Recoil, water and fogproof tested
Specially made quad seals to provide double insurance against leakage