Hi all,

I'm about to buy my first air rifle and have been doing lots of reading. However, there's something I don't understand and I was hoping someone would enlighten me.

From my reading, I understand that the legal limit for an air rifle is 16.3 joules or 12 foot pounds. Now, take the BSA Supersport for example, on the BSA website it says that its velocity in .177 is 1000 feet per second. So, I put that figure into this calculator here: http://extorian.co.uk/shooting/pellets.html and discover that (if I'm understanding things correctly) that, to keep it legal, I can only shoot pellets weighing no more than 5.4 grains. Who makes pellets weighing 5,4 grains?? I know that the Supersport is a pretty popular rifle and I can only assume that either a) every bugger is breaking the law, or b) I'm an idiot. Can someone please tell me which it is?!