Velocity

Velocity is a hidden statistic that determines the travel speed of a projectile fired from a weapon. It is not to be confused with use time, which is the delay between subsequent uses of an item (i.e. fast, average, slow). The higher the weapon's velocity, the faster the projectile travels, and the less the player will need to "lead" shots ahead of a moving target. This is an advantage that may prove very useful when fighting fast-moving enemies or when attacking from a long distance.

Tips
Most projectiles significantly decrease in velocity when entering liquids such as water. Some projectiles, especially flame-related ones, are immediately destroyed upon entering a body of water. Many projectiles only last a certain amount of time, meaning that liquids reduce a weapon's effective range, and projectiles affected by gravity will follow a heavier arc.
 * Weapons that use arrows generally have lower velocities than bullet firing weapons.
 * Certain ranged Modifiers can affect a weapon's velocity.
 * Some weapons (often magic weapons) don't have a consistent velocity.
 * The Demon Scythe fires a projectile that gradually increases in velocity.
 * The Death Sickle's projectile is the opposite of the Demon Scythe - firing a projectile with exponentially decreasing velocity until it stops in place before disappearing.
 * The Magical Harp's note projectiles increase in velocity depending on the distance between the player and the cursor, though its maximum velocity is still very low.
 * The Cursed Flames' projectiles increase in velocity every time they bounce.
 * Magic weapons that fire projectiles cannot have their velocity modified.
 * Melee speed bonuses increase the velocity of melee weapons that fire projectiles, such as Boomerangs.
 * Velocity modifiers on a Flamethrower will increase its range.

射速 Vélocité