Actually all you guys are right about the 30-30.

The 30-30 is not the real name of the cartridge. The real name of the cartridge is 30 WCF(Winchester Center Fire). And that cartridge was based on a smokeless powder load. However the parent case was the 38-55, which is a BP based cartridge. So the real roots of the 30-30(30 WCF) cartridge is BP, but not in the Model 94 Winchester.

WHHEEEWWWW. Now does that make any sense??

The 30-30 designation came from competitors who did not want to name a cartridge after one of its competitors(namely Winchester). So they renamed the cartridge 30-30(so as to match the traditional way of naming cartridges). And since Union Metallic Cartridge was the big mfr. of ammunition at the time-the name 30-30 stuck. And many of you probably know that UMC is now an arm of Remington. Tom.