Comments by "whya2ndaccount" (@whya2ndaccount) on "Leopard 2: Why a Mirror on the Gun Barrel?" video.

  1. Common to most Western tanks. English equivalent "Muzzle Reference System" (MRS). MRS fitted to M1 series, Chieftain, Challengers 1 and 2, etc. Normally "we" estimate the wind at the start of an engagement, not as part of each Fire Control Order. You estimate it, and then commence the engagements and then once you move elsewhere if things have changed, you update the estimate.
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  2. It only works with the Gunner's Auxiliary Sight (GAS) because that is aligned with the barrel. The Gunner's Primary Sight (GPS) which has the thermal channel is offset (e.g. on a M1 series its on the turret roof).
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