Almost all .308" .30 caliber bullets will load into any .30 cartridge case. The limitations are overall length, crimping groove location, and bullet weight, each of which must be suitable for that cartridge and rifle action. Bullet nose shape is important too. Only RN or FN bullets should be used in your typical .30-30 tubular magazine carbine to prevent detonation of rounds in the tube.
The biggest single difference between .308" bullets intended for other .30 caliber rifles and those intended for use in .30-30 is jacket thickness. The .30-30 case is modest sized, and can only give modest bullet velocities, and requires a relatively thin jacketed bullet to open up at the modest .30-30 game hunting distances. You do not want to use the heavier .30 jacketed bullets in a .30-30, nor do you want to use .30-30 bullets in a higher velocity cartridge that can cause blowups on game.