While my initial set of replacement dice has been discontinued (the manufacturer doubled the cost of the items to the point where I wasn't comfortable trying to sell them), Baron of Dice, manufacturer of loads of excellent alternative dice have been slowly ramping up dice for other games, including - surprise - 2nd edition 40K or old edition Necromunda, etc.
So if you're looking for Sustained Fire dice, Artillery (and Scatter) dice, head on over to Baron of Dice. You may even notice that their artillery dice is...suspiciously similar to my version (using the exact same font...). Guess immitation is the most sincere form of something...
