When chests contain arrows or bolts and the number of projectiles remaining in the chest is lower than the size of a stack of arrows/bolts, you are unable to remove the remaining arrows/bolts from the chest. For example, a chest that starts out with 60 arrows, where each stack removed from it contains 25 arrows, will leave 10 arrows in the chest that can't be taken.
When chests contain arrows or bolts and the number of projectiles remaining in the chest is lower than the size of a stack of arrows/bolts, you are unable to remove the remaining arrows/bolts from the chest. For example, a chest that starts out with 60 arrows, where each stack removed from it contains 25 arrows, will leave 10 arrows in the chest that can't be taken.