Whene you use a heavier airsoft bb does it make the fps (feet per second) go up ?

Question

like lets say i use a .20 and i want it to go faster and stay stright so should i go to .15 or .25 ???

Answer 1

Stay on .20

.25 will probably slow it down, but give it more power.

.15 will go a little faster, but it may affect the accuracy.

Answer 2

i am no airsoft expert but i have no idea what wise is talking about, and i deemed him an idiot.

the answer to your question is a simple investigation in to basic physics.

1) the gun itself is not changing so whatever the force applied to which ever bullet will be identical.

2) since the weight of the bullet is changing, thus the fps is changing the range/distance of flight has to change. the heavier bullet will not go further, not because its heavier and gravity is affecting it more, because 2 objects of different weights fall vertically in the same speed, but because the fps is slower and will travel a shorter distance within the same time frame (feet per second)

so basically the lighter bullet will go faster and the heavier slower

do not get discouraged by the slower traveling bigger bullet, as it is more accurate. do not get me wrong it will not be pin point dead on every time, because that is hard to do that with a non-spinning (barrel not rifled) spherical object.

so consider what is more important, distance or accuracy. note that the distance is not dramatically shorter but there is a difference.

i prefer a heavier bb for accuracy, also a heavier bullet has more power (it will hurt more) but this isn't really a factor in airsoft, the bb is not penetrating anything to kill it.

Answer 3

It increases the fps but not the range. Also you make your bb gun fall under a fire arm if it increases the fps over the speed label not a fire arm. The range is not increased because the bb is smaller but it comes out at a faster rate. If you make it bigger you decrease the fps but it might go further than the current size in certain shoots.