@Avygeil @TwerkinCraft When I said "weird" I mean that the range of the explosion increase a lot. The same with the power. Sorry for not explain that. Also I'm not able to record a video .
Well, according to this it doesn't increase in any way at all whatsoever! https://github.com/Bukkit/mc-dev/blob/master/net/minecraft/server/EntityTNTPrimed.java Are you sure?