When people speak of BB ammo, they tend to think of it as a single thing when in reality, there are a variety of BB types with key differences between each one.
The weight of BBs determines how much force is needed to shoot BBs out of a gun and can have an impact on a gun’s accuracy and trajectory.
Quality testing
If you have the opportunity, it may be a good idea to test different weighted BBs for your Airsoft weapon to see the different effects each provide on the power, velocity and accuracy of your shot.
If you are using any weapon other than a sniper rifle, different BBs should have an impact on at least one of the factors mentioned above while sniper rifles already tend to focus on all three at a long-range.
Different BB pellets can cover the same range although some may be slower and less accurate than others if they are affected by the wind. It is one thing for the BB to reach your target but not all of them have the same power and impact as others.
Through these tests, you can be satisfied that the BB ammunition is fit for purpose for yourself so that you are not wasting ammo with inconsistent shots.