Optical instruments for firearms, namely, telescopic optical gun sights, rifle scopes, and spotting scopes; laser rangefinders; distance measuring devices for use in connection with firearms; angle slope level indicators; calibration devices for calibrating firearms; computer hardware, downloadable computer software, and recorded computer software for targeting assistance and analysis in the field of ballistics; optical instruments, namely, binoculars, monoculars, telescopes, and spotting scopes; weather instruments, namely, anemometers