[ILLusion]

Originally Posted by Dracheous

All I can figure about these "Twisted" or "rifled" barrels is that it doesn't make sense to me. The BB's we use are hard plastic, not soft enough to be shaped by the rifling. Nor do I see how this can give/get any better spin to the round than the hop up systems in AEG's presently. The overhead wheel puts a nice back spin, which because its a sphere really works well. Now if they divited the rounds like a golf ball than we'd see some improvement. But who wants to pay EVEN more for a hand full of live savers :P

Originally Posted by Cheesevillage

Deacheous the "rifling" doesn't even touch the BB. Air moves up the rifled shafts and keeps even pressure on all sides of the BB, thus reducing friction inside the barrel because the BB "floats" as opposed to bounces.

Exactly.

Originally Posted by ILLusion

Q1. "How is it physically possible to have a rifled barrel impart a spin on the BB and combine it with the Magnus effect of the hop-up? It is two totally different axes of rotation!"
A1. Actually, the barrel ISN'T "rifled" in the standard sense of a real gun. Yes, the inner barrel has spiral rifling grooves in it, but the BB does NOT touch the groove. The purpose of the TWIST inner barrel is not to put a rifling spin on the BB. It is to put a "cyclone" of air around the BB, to help float it through the inner barrel and PREVENT the BB from touching the side walls of the inner barrel at all. The result of this is higher accuracy, more predictable trajectory and greater effective range.