whats the longest range i can expect from my 38"x4"x10'x2" launcher?i have sent them as far as 300 yds with a 17"x4"x5'x2" launcher w\ hairspray &bbq ignitor.this one has a stungun,3 pairs of electrodes&propane. thats if i can order the meter without my wife finding out. she says it was cheaper when i used to go to go-go bars.