All the explosives are working just fine on my end. If there's a problem, please report it coherently instead of throwing a fit. I can't fix things if you don't tell me what's broken.
If the default scales aren't to your liking, you can change the size of any object while spawning with the up/down arrow keys. Or use the Size-field in the Spawn > Properties menu.
Can't fix without a proper bug report. What seems to be the problem?