Homemade telescopic 7.62mm rifle rounds
The concept of a telescopic round of ammunition dated back to 1895 with the Nagant Revolver and later auto canon or the SP-4 cartridge used on PSS Vul pistol . I read about it around 2010s but didn't think much of it until now, I realize that's a viable alternative for homemade ammunition: Chamber can be a straight tube, no taper required Easier to design magazine Doesn't have a projectile poke out will simplify feeding mechanism Plastic pipes are easy to obtain in various sizes Doesn't look like conventional ammo, lay low from the prying eyes Concept : The main body made from 12/10mm OD/ID PVC tubing. With the rear plugged with a primer/igniter system 10/8mm OD/ID PVC tube then nested inside to form a throat. Bottle neck helps boost the projectile to higher muzzle velocity The projectile then seated flush into the case neck Making the rounds Projectile First we design our projectile. Dimension of the whole cartridge is based on the projectile caliber and cha...
