Depends on what you consider most shooty: infantry, warmachines, wizards.
Empire can have crossbows, bows, handguns, cannons, mortars, rocket launcher and helblaster
Wood Elves can have bows in mass amounts
Skaven and use jezzails
Tomb Kings can amass bow fire
Lizardmen can have blow pips and javelins
Dark Elves have repeater crossbows
Just about most armies can amass shooting except WoC, BoC, VC at the top of my head.
-Mark