Loose Cannon

 is a Trait which only appears in Fallout: New Vegas.

"From Frag Grenades to Throwing Spears, you can throw weapons 30% faster at the cost of 25% less range"

Specifically, your attack speed is multiplied by 30%, and your Action Point consumption for thrown weapons is reduced by 30% as well, but you lose 25% of thrown weapon velocity, shortening the distance that you can hit a target from.