Ameli Rifles use .45 CAL bullets. This type of ammunition is very expensive to buy however you can get these at your local gun store. Ameli machine guns use .22 rounds that are a lot cheaper.
No. They use blanks.
a tazer or a gun with a no leathl shot
Use a gun that allows you to shoot fast and use gun booster.
Yes. The .50 caliber machine gun was developed for use on armored vehicles. A lighter version was designed for use in aircraft.
To kill a vampire with a gun you must use silver bullets.
It wasn't. The machine gun has it's advantages and disadvantages, just like every other gun. It was renown for for its ability to spray out a lot of bullets very quickly. However, like all other guns, it has it's drawbacks. MG's are heavy, use a lot of ammunition, and require constant cleaning. As to your question, they aren't. You have to use the right gun for the job.
.45 ACP
yes you can imitate a machine gun. With the proper use of equipment one can make a fake machine gun.
Assuming you mean "machine guns," when most people use the term, they mean a gun that is fully automatic. That means you can hold the trigger down on the gun and it will continuously cycle the action and fire the bullets that go into the chamber.
Japanese
Use a machine gun, tier 1 perk Scavenger or tier 1 perk One Man Army.
The Barrett sniper rifle typically uses .50 caliber bullets.