In fission weapons, a mass of fissile material (enriched uranium or plutonium) is assembled into a supercritical mass—the amount of material needed to start an exponentially growing nuclear chain reaction—either by shooting one piece of sub-critical material into another (the "gun" method) or by compressing a sub-critical sphere of material using chemical explosives to many times its original density (the "implosion" method). The latter approach is considered more sophisticated than the former and only the latter approach can be used if the fissile material is plutonium.
That seems quite plutonium.
-Wikipedia
remember, tpt isn't meant to be realistic. it's meant to be fun.
Geez, stop whining. We wont change PLUT or URAN.
To make a gun, use PHOT or PROT or FRAY.
Realistic is not always fun.
So, it would be fun if TPT was realistic? What would happen to C-4 and it's good ol' pink color, what would happen to WOOD and that it instantly bursts into flames when you put one pixel of FIRE under it?