Well no, reloading metallic cartridges is not much like reloading for shotgun, other than the fact that they both use gunpowder.
I started loading shotgun before I learned how to load metallic, so I know where you're coming from.
With shotgun, you pop out the old primer, pop in a new one, dump in the powder, then a plastic wad, then compress, then dump in the the shot, and then you crimp. With metallic you pop out the old primer, resize the case, pop in a new primer, bell the case mouth, pour in the powder, then seat and crimp the bullet.
The fact that you are reforming a brass case with metallic makes all the details different from loading plastic shotgun shells. The primers are different, there is no wad, and crimping a metallic case is completely different than crimping a shotgun hull. Plus the equipment is completely different.
The best thing to do if you are thinking of getting into metallic reloading is to buy a good manual and read up on the process. I recommend the Lyman Pistol and Revolver Handbook.