RE: What is the most explosive bullet for a hornet ?
There's a 25 grain bullet now being made by CRP Custom Bullets, which will permit velocities up to about 4000 FPS from the Hornet using certain charges of Norma 123 or Alliant Power Pistol powder. Look for an article entitled Maximum Hornet in the Rifleshooter Magazine (Aug, Sept, or Oct 2001 I believe) for more info. I tried it - it works!!
Larry