Broadside
Hold on the back line of the near front leg, about a third of the way up the body. A chamois's heart-lung area is roughly the size of a hand. The dark winter coat hides the leg line, so pick out the elbow first.
Quartering and other angles
Shooting steeply downhill, hold higher on the near side so the exit comes low through the far-side lungs. Uphill does the opposite. Quartering away, aim for the far front leg.
Do not
Do not shoot a chamois standing above a drop you cannot reach, and do not shoot one that is only partly visible on a ridge line. Always know what is behind the animal.
Where they live and the typical miss
Found in the Alps, Pyrenees (as isard), Carpathians, Tatras and the Balkans. The typical miss is high, caused by a steep downhill angle or misjudged range across a valley.
Gams on the ridge
Chamois often feed on high meadows and bed on rock ledges. Glass for a long time before you commit to a stalk. The shot is often decided hours earlier by the route you take.