The Effects of an Airsoft BBs Weight on Its Trajectory (Flight Path)

Overview

Objectives/Goals The goal of my project was to determine how the weight of an airsoft bb affects how it flies. I believe that the heavier bbs will fall more than lighter ones in equal distances, have shorter trajectories, and scatter less than the lighter ones. Methods/Materials A brace to hold the airsoft gun was constructed, and bbs weighing .12g, .20g, and .25g were collected. Then a multitool with a laser and level was set in place of the gun barrel and the laser dot was marked on a target at 5 meters from the gun. Then ten .12g bbs were shot at the target. I repeated the process with .20g bbs and then again with .25g bbs. The whole process was repeated at 7.5 meters and again at 10 meters. The experiment was conducted twice with the same results. Results The heavier bbs had fallen over twice as much as the lighter ones at 10 meters. They also had a much tighter spread on the targets than the lighter bbs. Basically, they proved my hypothesis. Conclusions/Discussion From my project, I conclude that for a more powerful gun, heavier bbs are definitely preferable to the lighter ones. But at close range or with a weaker gun, the lighter ones will have an advantage. For a standard bb though, a .20g bb is a good mix of both.

Competition history

• CSEF 2011 Applied Mechanics & Structures · Entry J0329

Resources

• CSEF project summary ↗

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

• All Engineering projects
• CSEF Engineering projects
• Every CSEF 2011 project