I was recently watching some OT shooting on ISSF/You Tube, before the start of the comp a list of things appears on the screen, it gives details about shot weight, shot size, clay size etc. It also showed gun weight ....4KG!! Well I was not aware that the ISSF had imposed a weight limit on guns, or have I misunderstood something? Can anyone (Fred..40UP ?) shed some light on this please, I cannot find any info about it online. If we do now have a weight limit on guns, how long will it be before we are told what make of gun we can use, how long our barrels can be, what make of shells we can use? Any ideas or thoughts guys?