In precision rifle shooting, milliradian is very common. Minute of angle is also still common. Scopes are sold with both. It sort of depends on the discipline

In precision rifle shooting, milliradian is very common. Minute of angle is also still common. Scopes are sold with both. It sort of depends on the discipline. For example service rifle scopes are almost universally in minutes of angle, while in the Precision Rifle Series the overwhelming majority use scopes in mils. Super confusing is when a scope uses mils for the reticle but minutes of angle for the adjustment. That's just terrible, but they exist.