I'm one year away from buying a handgun :(
But I have 2 ARs, a blackout and a 223, a 7mm mag and a 308 Rem 700. I hand load for all of them.
For the blackout I use old 142gr tracers that don't light anymore, got them super cheap.
For the 7mm I use the nosler 150gr BT or Hornady SP 175gr...