Various military aircraft fly through Rainbow Canyon at high speed (December 2018). Enjoy!
How to Zero your Weapon | Pyser Optics SAC
Making your bullets count. - 24 / 7 quick and simple zero confirmation - Laser free device - Spend to save purchase - Rugged and robust - No moving parts - Factory set for accuracy - Maintenance free - The SAC is a unique, high precision optical device that allows users to quickly conduct an initial zeroing of any weapons and optics platform, to an unrivalled level of accuracy, without the use of any laser and ammunition. The weapon zero can also be quickly confirmed, in any location and operating environment prior to deployment to instil total user confidence.