I reproduced the Tom Kaye "powder" test in an overbored 2 piece today, with some interesting results. We'll get to that later, but it was such a fast and easy test, I was hoping we could all grab some data - I'll check eigenbarrels next week, I just shot a dye UL real quick because I was looking specifically at the overbored tip. I used standard baby powder, worked great.
Anyway, if anyone wants to do the test, here are some interesting things to look at:
1. What gun, paint and barrel setup?
2. Bounces or skips - will the side to side motion of the ball always alternate, or will air pressure make the ball hit the same side twice in a row (or both, randomly)
3. Was the bounce pattern repeatable in your gun (location of impact spots)
4. Where were the bounces?
1. Empire AXE, Lurker bolt, ~.686 paint, .689 Dye UL w/ .700 tip
2. Bounces (alternating sides)
3. Yes, it seemed to be concentrated in one orientation and didn't even out until i messed around with partially unscrewing the barrel to get different positions.
4. I didn't take good enough notes on this because I'm a chobo but I believe it was up/down orientation, with lots of bounces near the back, and much fewer as we move towards the tip. still, looked like maybe 30% of shots contacted inside the tip to at least some degree.
Edited by Snipez4664, 09 April 2012 - 09:48 AM.