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  1. Impact studies
    Just a brief bit of data to help you select your ammo. With spheres, a 25% increase in diameter doubles the volume. So moving from 8mm to 10mm doubles the volume of your projectile, which of course doubles the weight. Next item is density. Here are a few: Glass: 2.4 Steel: 7.82 Lead: 11.35...
  2. Knives, Swords, and other bladed weapons
    Hi. Question for metal people: I have a knife blade blank with 3/16 inch holes in the tang but I want to expand those holes for 1/4 inch pins... I tried using a x2 cobalt drill bit for stainless steel but it just chewed the bit up... would it make sense to try and temper the blade for a few...
  3. Knives, Swords, and other bladed weapons
    Redundant post... :o
  4. New project ideas
    To improve the accuracy of the card shooter and possibly the power as well, you could add a barrel through which the card could be propelled. This would allow for a greater velocity in the intended direction (improves accuracy maybe?). You could position the card either vertically or...
  5. Slingbows
    I'm home-making these. I've also invented a new method to easily turn a slingshot into a slingbow. http://www.shockleysww4slingbows.com
  6. Site Help and Suggestions
    hi guys if your looking for cheap ammo in the UK check this out http://www.brindley-steel-forging.co.uk/acatalog/Mild_Steel_Balls.html:D:D:D look under mild steel balls
  7. Show off your homemades!
    Once again, wood meets surgical steel. My newest creation with clamps for the rubberbands and possibility of exchange the whole fork, leaving the same handle. It took a lot of strenght to bend the high quality stainless steel. the for is atached with nuts to the handle grip, that has two long...
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