What is the highest possible durability? Is there a way to make a block more resistant to a single SC250?

[=KG76=flyus747]

I tried 125,000 and the building still dies to a single SC250.

 

I want to make it so it takes at least 2+ SC250s to destroy it. Is this possible?

[DD_Friar]

If you do not find an answer to the durability and are only dropping one bomb at a time and going for a specific target how about adding in an killed event going to two counters, one set to 1 and the other to 2.

When the counter set to 1 is fired it triggers  a damage repair MCU so it looks like no damage or perhaps a partial repair.

When the second counter is triggered the building will have been killed.

 

Requires a few restrictions only 1 bomb at a time etc but just a thought.