ballistics
In general, ballistics is the science or study of the properties of projectiles, or science of designing bullets and cartridges.
The study of gunshots and bullets is called ballistics.
There is no such thing as the "study of bullets", except, perhaps, as a historian. However, one may study the effectsof bullets using "ballistics", and a person who does so for a living would be called a "ballistics expert"; someone who is trained to do such at a crime scene or laboratory may also be called a "forensics specialist", but the word "forensics" has nothing to do with bullets.
Probabably 22LR. Have it checked by a gunsmith.
Comparing 2 bullets in a laboratory exam to see if they were fired by the same gun.
Generally they don't. Lighter bullets generally have a worse ballistic coefficient as compared to heavier bullets of the same caliber.
Ballistics is the applied science of the behavior of projectiles, such as bullets and artillery shells.In police forensics, ballistics is the specific field of identifying bullets and their sources. Since every firearm leaves a distinctive pattern of marks on a bullet, it is like a "fingerprint" in a court of law, an undeniable link between a projectile and the weapon that fired it."Mr Freestone was elimimated as a suspect in the murder when ballistics tests proved that the fatal bullet had not been fired from his gun."
Yes
22 Long Rifle
A bullet recovery box is a heavily reinforced box which is designed to deflect and collect bullets fired into it. They are often used when testing bullets or by crime labs checking ballistics.
There are many different variations of .22LR rounds. Some have higher or lower grain bullets, some even have different shapes, and different brands could be higher or lower quality. These factors, along with the distance from the geletin, affect the bullets penetration ability. The length of the barrel of the firearm can also have an affect because shorter barrels don't allow for as high an exit velocity for the projectile.