Originally Posted by
Artfull-Bodger
It's a case of surface area, the larger the surface area the greater the force applied for a given pressure.
Pneumatics are inversely proportional, when compressing you get more pressure for a given force by reducing the area, and when using a force to move something you get more force for a given pressure by increasing the area.
So the smaller area means you have to push for longer to transfer the same amount of force, in other word you need to use a longer pulse of high pressure air to get the small diameter pellet up to the required speed.
Hmm no matter how many times I write this it never comes out as simple as it really is?