so my problem now is a discussion on witch way to go with building it to full working scale i have a rail a made for this with 10 caps ( not connected parallel or sires they are individual ) ill add a photo .. now i mnot sure if i want to try to time 10 discharges if i will benfit more from geting the timeing right and punching the round 10 times down the tube or if i should try to build a set of 2 big coils and use 5 caps and chrgers per big coil i think not knowing what i need for a coil desin to mact what i have is the biggist problem but this is where im at cant decide if i want 10 small coils like i have that are working now and accelerating the round with each one down the tube or just try to punch it twice with 2 coils that would be approximately 6 inches long each and use 5 and 5 to do this