This is a bit embarrassing so I'm just gonna come straight out with it: I measured the L.A.P range completely wrong.
Basically my friend Nigel has this thing he made in A level electronics (he's a bit older than me) which measures the range of his BB guns by firing the pellet through a slot which has a small laser beam in it. The machine calculates the speed of the bullet (the amount of time the beam is disrupted for), and gives a reading of it's potential range in perfect conditions.
I thought it would be compatible with K'nex guns, so I fired my LAP into the machine and it gave a reading of "60". I was satisfied as I thought that 60ft was a good range. I asked my friend what units the machine measured in, (just to check) and he said it measures in Yards. I was stunned! I worked out that 60 yards is 180ft! So I posted the range of the LAP as 180ft.
However, I asked him if I could borrow it again for my shotgun (posted the video on YouTube) and he said yes. So I shot the bolt through, and it measured as 225, so that was 675ft! I was very sceptical at this, so I took it outside, and my best range was 204ft. Then the penny dropped! The machine must have measured in FEET, not YARDS! I went to him and told him to check his programming. He was adament that it was measuring in yards, so I showed him my L.R pistol (which I knew cannot shoot the length of my 50ft garden). The machine said 33. That's 100ft! So I told him to sort the machine out. He has now etched the word "feet" next to the digital display, and so tells me that he accepts FULL responsibility for this magor cock up.
And for the record, the LOSA pistol (with a more powerful design than the LAP) shoots 75ft, and about 110 with sniper rods, and this is not at an angle. Add about 15ft for the angled range.