@jrrwd yeah I know what you mean. You should try shooting marbles on a sunny day - they shine so much that you can easily see them flying - that's something really impressive
what about inducing spin on marbles (and other round ammo as well)? I did tried doing it with a homemade hop-up the results were not that bad - I could clearly see that mables were flying stright (well at least in the plane perpendicular to the direction of spin) but I experienced some problems with elevation - I mean that they were reasonably accurate in the horizontal plane
I suspect that it was only casued by the ghettoness (yeah I know there isn't such word but you get the idea) of my homemade hop-up or small differences in size of ammo. AFAIK airsoft hop-ups work quite well right ?
I've just recived a message form D_Hall, he didn't give a direct answer but he provided a link --->
http://en.wikipedia.org/wiki/Drag_coefficient# now I feel like an idiot... well not exactly like a complete idiot but anyway an idiot...
I've seen that page but I was not sure whether it is correct... well check it on your own but the way I understand it it means that cd value (drag coef) of smooth sphere is 0.1 (0.4 for rough sphere.... ) now the question is -> how smooth does the sphere have to be to be regarded as
a smooth sphere?
![Shocked :shock:](./images/smilies/icon_eek.png)