Ranged Strength is one of the Equipment Stats, primarily found on ammunition. It helps determine how much damage a Ranged attack will do, whilst the Ranged attack bonus determines how likely an attack will be to hit. Whilst Ranged Strength is usually found on ammunition, darts, knives, and chinchompas are examples of projectiles which provide their own Ranged Strength bonus and are equipped in the weapon slot.
Weapons which provide a Ranged Strength bonus include the toxic blowpipe, which uses darts as ammunition, the crystal bow, which generates its own ammunition, and the venator bow, which uses arrows as ammunition. Various items in other equipment slots, such as the necklace of anguish and Ava's assembler, also provide a Ranged Strength bonus.
Below are the ranged bonuses of ammunition. Note that damage is also affected by the speed of the weapon used. Rune knives deal damage very quickly, despite having a max hit of less than 20 damage. For this reason, most ranged weapons are better used in rapid stance. Accurate stance will deal more damage per hit, but it is not worth the decreased speed. If accuracy is needed, a slower weapon such as a crossbow will provide the needed improvement, whilst dealing more damage to compensate for its slower speed.
Because cannonballs are fired from a dwarf cannon, and not directly from a player, they do not have a Ranged Strength stat. Cannonballs have a max hit of 30 and granite cannonballs have a max hit of 35 regardless of the player's Ranged level, although their accuracy depends on the player's highest attack bonus, regardless of whether it is slash, stab, crush, ranged, or magic. It will take into consideration the highest attack bonus of one of those.