first: if it is a squib problem, don't fire again. On squib fired round it is indicative of not enough or no powder in the cartridge. The bullet is stuck in barrel. Open the cylinder (revolver) and remove all shell cases. then using a brass rod (not steel) proceed to tap the bullet head out of the barrel. Tap from muzzel to rear. The same for an automatic. remove magazine. Disassemble the pistol. Proceed to tap the bullet out of the barrel with a brass rod (not steel) taping from muzzel to rear...............