Bloomin heck. Excellent idea, as all I'm doing is 25 yd shooting in a well sheltered home range. Thanks for this. Haven't played with the power of my Rapid so here's something to learn up on. (There's not actually a big issue with refilling the rapid but as I'm shooting over 100 a day at the moment, it's a bit tedious taking off the bipod/sling band and then the bottle. Tedious enough for me to spend £100 getting this quick fill! And I've just bought a 500ml bottle as well....
Yep, will have a look for this as well, thanks. The bottle is coming close to touching the barrel at the front and I'm not sure if that's normal or not but that could indeed be another solution.
Much appreciated chaps. Thanks again.