chrisjpainter Posted August 21, 2018 Report Share Posted August 21, 2018 On 20/08/2018 at 08:07, Mr.C said: Looking at the 1st post, if your just shooting 10 or so shots a day buy a 7ltr bottle it'll last ages. I shoot a comp most weekends and bought a tank in April. I haven't had to refill it yet. Here you go clever people, how long will a 7ltr tank last at 10 shots a day, every day. Cylinder capacity being 200cc, fill to 180psi and refill at 120? Gun is a 177. Other parameters necessary to the calculation I will leave to the mathematicians. It's slightly ambiguous, because 10 shots per day isn't 'occasional'. I took it to mean occasional use and then on the day that it is used, only 10 shots or so. But even if it was ten a day, that's 70 a week, so you're still only charging once a week. Yes a bottle is easier, but then it's a 30 mile round trip to get a bottle filled plus the initial expense of buying the bottle and then the expense of the certificate check, which all adds up. Quote Link to comment Share on other sites More sharing options...
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