Besides spin-stabilization, another problem with any barreled weapon (that is, a gun) is that a large-diameter shell has worse accuracy than a small-diameter shell of the same weight. The lessening of accuracy increases dramatically with range. Paradoxically, this leads to situations when a kinetic armor-piercing projectile is "more" usable at long ranges than a HEAT projectile, despite the latter having a "higher" armor penetration. To illustrate this: a stationary Soviet T-62 tank, firing a (smoothbore) cannon at a range of 1000 meters against a target moving 19  km/h was rated to have a first-round hit probability of 70% when firing a kinetic projectile. Under the same conditions, it could expect 25% when firing a HEAT round. This affects combat on the open battlefield with long lines of sight; the same T-62 could expect a 70% first-round hit probability using HEAT rounds on target at 500 meters.