Explosion power is bugged (?)

[KikiMofo]

After further testing, I rescind my previous statement.

Large amounts of black powder, while still large, are nowhere near as large as they used to be. More around 9x9 rather than 21x21.

When you are talking large amounts how many units do you mean? When I see large amounts I think 100 units or more. Unless you mean a black powder double smoke.