I'm attempting to model a .45 ACP bullet as a practice exercise, and am exceptionally new to Blender (if not StackExchange).
The modified cone - the upper element - is the bullet, and he cylinder - the lower element - is the cartridge, and is incomplete (first image).
I am attempting to separate the cartridge from the bullet, so that, once both are unwrapped, I can assign different textures to both of them (copper for the bullet; brass for the cartridge). The complete model will have them intersecting one another where the bullet would meet the cartridge on an actual .45 ACP round, but for now they're not touching one another in the editor so that they're easier to work on.
However, when I press "separate", the geometry of the cartridge appears to be deleted. The mesh is still there, but there are no longer vertices, and it can no longer be colored or unwrapped (second image).
How do I make both the cartridge and the bullet two separate objects with their own geometry?
As an aside, I have no clue as to what to tag this, so edit whatever you want in that regard.