Jobe00:
However, f you swap out the flechette round for an APFSDSDU round with a 10mm by 100mm dart, that will end a tank and probably the tank behind it.
The boom gun round is roughly a 25mm projectile and considering the Glitter Boy is a mobile gun system it would make complete sense for there to be an Armour-piercing fin-stabilized discarding sabot round in its arsenal. The round as depicted in the artwork that is comprised of 200 rings (not flechettes) is an alternative but cheaper round that does much less damage but is perfect for killing lighter vehicles. Also with the amount of velocity the 200 rings would not have much separation or spread until they got to extreme range.
Anyhow in the games I’ve been and after pointing out the above the GM was often the type to side with common sense and made the GB have a solid slug penetrator type round available.
That said the Savage Rifts concept of a boom gun being an area effect weapon essentially castrates the Glitter Boy into something not worth running. This is sad because as originally envisioned Rifts was going to be called ‘Boomers’ and literally be all about the Glitter Boy. But then an anime came out with the same name so that concept was scrapped and we the whole kitchen sink that Rifts is.