[OneTimeLurker]

Doesn't it depend on the contents of the bomb? Wouldn't for example, 450 KG of plastic explosive would yield different than 450 KG of a fertalizer type bomb?

[CougarGA7]

That's true. It's all calculated to a "TNT equivalent" The yield of ANFO for example is .8 TNT equivalent (.8 something, I don't have the exact number in front of me) So, a ANFO device weighing 4500lbs would be equivalent to 3600 lbs of TNT.