I started by watching my father smoke cigars and put shotgun shells together with a Herter's press. Maybe 7 years old? In time he'd let me size and decap. By the time I was 12 (1969) I was reloading every cartridge we shot including the .45-70, 6.5mm Swedish Krag, 30-40 K, 30-06, .218 bee, .22 hornet, .219 Donaldson Wasp, (bee and wasp all in Winchester 92s my dad rebarreled and restocked) .44-40 rifle and several others. My father was not interested in handguns much. We did have 2 surplus 1911s and a 1917 S&W along with the odd .38 or two, but my father did not reload for those. I got interested in handguns at about 15 and did all the handgun reloading. My dad has never loaded a single handgun cartridge that I'm aware of. He is a rifleman, pure and simple.
John