User blog comment:RandomGuy96/So how do planetary defense cannons work?/@comment-5379655-20130128042915/@comment-68.8.14.28-20130129072033

Cruiser rounds would burn up upon entering the atmosphere? But I thought the difference was that they were slower than dreadnought rounds, not lighter? If cruiser rounds did burn up that would make some sense, but why wouldn't dreadnought rounds also burn up?