Railgun damage (research)
From Official Factorio Wiki
		| Railgun damage (research) | Edit | 
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 Cost  | 
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| ✖ 1000 | |
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 Prototype type  | 
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 Internal name  | 
 railgun-damage-1  | 
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 Required technologies  | 
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 Allows  | 
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 Space Age expansion exclusive feature.
Railgun damage applies a +40% bonus to the damage of Railgun ammo for each level of research.
The cost formula is 2L * 1000 where L = current level, with each level giving 40% damage.