The P229 pistol is made in 3 different calibers- one of which is the 9mm Parabellum, also known as 9mm Luger.
There are many 9mm cartridges. 9x21 is one of them. First number is the bullet diameter and the second is the case length.
Yes
A round is a cartridge made up of the case, primer, powder and bullet. The bullet is the projectile that leaves the gun. There is only one bullet in a round.
Bullet cameras or network cameras start at 20.00 dollars and go up to 200.00 dollars, they can be found at Amazon. There was even one that cost $354.95 dollars.
Which one?
All else being equal, the one that has more foot pounds of energy.
While it is possible that a 9mm para bullet could go all the way through a body and into someone else, I only know one person who was shot with a 9mm para round, and the bullet did not make it all the way through him. The answer will depend on the thickness an density of each person, the load that is used to make the round of ammunition, the distance that the bullet travels, what the person is wearing and the firearm that it is fired from.
Actually, the powder is in the cartridge case. A bullet is the metal projectile that is fired out of the barrel. The powder for a 9mm Parabellum (also called 9mm Luger) cartridge will be one of several different smokless powders. I use Bullseye or Unique for many of my pistol loads, but there are dozens that can be used.
No one armor piercing bullet, so there is no one cost. Most are inexpensive to make- less than $1 per bullet.
There is no one answer- because there is no one gunpowder, and no one bullet weight. Amount of powder is driven mainly by those two factors. If you intend to reload, get a copy of ABCs of Reloading, and read entire book first- excellent reference.
this is very controversial subject my father believes a 9mm is a great defense weapon. the problem i have with this caliber is that it velocity is to fast, this means the bullet has the opportunity to travel straight through the target and hit what ever is behind the target. a 45 is slower and heavier bullet. this means that when the bullet hits the target, it delivering all of its kinetic energy when it hits the target. Allowing the shooter to use one bullet rather than 2 or 3 bullets from the 9mm The 9 mm is good for killing from a long distance, but yea if your getting attacked an you shoot the attacker it will take him down.