Hornet... you will need to reload it, nobody stocks decent ammo.
Also, factory stuff is OK I guess, but it ain't cheap and it don't shoot straight. As an example, if I use Prvi factory, I get a group of about 1.5" at 100 yards. if I use a homeload of 12.3gr of H110, 35gr Vmax, then I get a half inch group. My homeloads cost about 20-25p each, and the factory is twice that.
Added to which, the 35gr vmax explodes, the factory SP barely expands. Hornet is great if you reload, but if you don't then AVOID!