The main difference between the two types of bullets is the type of cavity. If you checked a regular bullet, you would see that this is normally smooth. It will have a shape that is similar to a dome. When you check the shape of a hollow point bullet, you will notice that it will have a hole on top.
It will depend on the type of hollow point bullet that you will purchase on what the size of the hole on top is going to be. The main reason why a hollow point bullet has a hole is to allow it to expand further when it is used. This will expand upon impact.
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Answered May 12, 2020
Everything depends upon whether it is a regular or hollow point bullet. The critical difference between the two is the presence of a cavity, while a regular bullet is a smooth dome-like shape. Hollowpoint bullets have a shell to permit expansion upon impact. The purpose of the hole in the hollow point bullet is to allow expansion upon impact.
Once a hollow bullet hits, the force on the front bullet forces the soft lead to buckle and expand outwards. Although regular shots also experience expansion when it hits a solid target. However, it is less likely to do so when hitting soft targets such as human flesh.
Expansion is an attribute in bullets for many reasons. It can also do substantial destruction to the mark compared to regular bullets. This damage is also because expanding bullets utilize all their energy on the target.