an automatic and semi-automatic pistol
is easy, but it can be dangerous.
A misfire is usually caused by a faulty round. Try pulling the trigger again to see if the weapon discharges. If it does not, wait 30 seconds with the gun pointed in a safe direction. If there is a slow burn in the powder, the gun will discharge before 30 seconds has elapsed. If the round does not discharge, remove the magazine, then eject the round. Examine the primer; if the indentation from the firing pin is light or off-center, have the pistol checked by a competent gunsmith or disassemble the weapon, making sure to check the firing pin hole for blockage. Clean the gun if necessary. If there is a good indentation from the firing pin, the round was defective.
Weak shot, cartridge does not fully eject
Normally, the primer was fired but the powder did not burn. Possibe causes include no powder in the cartridge. IMPORTANT: Do not fire the gun again! Manually remove the cartridge casing, remove the magazine, then examine the barrel for a possible blockage. If a bullet is lodged in the barrel, firing another shot can cause your pistol to detonate or backfire through the breech, causing severe injury! Remove any blockage as necessary. Examint the pistol for any other blockages or fouling.
Spent casing is not ejected
Normally caused by improper cleaning or lubrication. In some cases, your pistol may not be totally suitable for a particular brand of ammunition. Clean and properly lubricate the pistol as necessary.
Round will not fully chamber
Most likely cause is the magazine is not fully inserted. Other possibilities include a defective magazine or improper cleaning and lubrication. Change magazines to see if the problem still exists. Check the gun for fouling and lack of lubrication. Refer to a competent gunsmith as required.