Blow up even more things with this all new exclusive product by: Boomcorp! Now with 50 rounds you can blow up 50 times more stuff faster! This isn't fully automatic for no reason! All you have to do it pull a lever to either start or stop it and just sit back and relax as that noob's house explodes in front of your very eyes without all the hassle of lighting the tnt and running repeatedly.

Additional Notes

There is now a schematic... so you can pone in any world.
mcedit schematic file: schematic