Fireworks do not explode on impact.

Fireworks also have extremely glitchy physics to a point where they will bounce off blocks, slide across the floor, and will often be incapable of fitting through 1x1 holes. They also, on occasion, clip through the walls when launched or fired from a crossbow.

Fireworks have inconsistent damage, and will almost never actually do damage, even with a fire charge modification, meaning it is not an issue with range.