What sizes smaller than 3lt can be found for bottles. looking at 300 bar min. I know back in the 1990's i had a 15lt (Bomb size) and something like a 1.5 lt bottle. Used to decant from 15-1.5 and carry that to shoot. so i was thinking someting along the lines of 1lt + would be an idea if it were 300 bar. easier to take in car? Any one point me towards the desired small 300bar bottle?