All depends on the caster the outfit the conditions and the rig not to mention the bait plus its presentation
my rig of preference for long range casting is a long range bomber with slim but juicy lug to cut down on any wind resistance
Dont know for sure how far i can get with it but with ideal conditions and a good POWER cast putting a good bend in the rod making it work an all that (thanks Joe for showing me how) i can reach a distance of 140 or so and ive only basic gear and dont get a lot of practice unlike congerman who's down there most days honing his skills so we mustn't be too quick to judge
Cos if a tosser like me can do it given the right conditions then who knows what can be achieved
All the best.