Hello everybody, That´s my first Topic here so I decide to introduce myselfe a little bit. I am 19 years old and live in Bavaria near Munich. By a random I find Joerg´s Youtube Channel. And now, a few days later my first homemade Slingshot is (almost) ready to fire. I have to say that this is not the first Slingshot in my life. I buyed a few years ago a Cobra-Slingshot on Amazon. With this I am more or less accurat at shooting. But I really like to do things with my own hands so I decided to make this one. On the picture down below you can see what the Rambone is looking now after the first layer of oil. Yesturday I orderd at http://www.kugel-winnie.de/ 1m of TBG, 100 13mm Steel Balls and a rollcuter ( Can´t find one in the hardware stores here ) However, a few questions I still have: How should I cut the bands so they are able to shoot the 13mm Balls with the right power ? I don´t understand the Bandcalculator... Of course I would like to shoot the Slingshot with the most power I can handle but altough i would like the bands to resist arround 250-300 shots (with one band set ) And is there somewhere a good tutorial for a Pouch which can handle the size of the ammunition I ordered? I am very grateful for every answer to my questions (of course other answers too ) A nice sunday to all of you and sorry for my english I hope you can understand the most.