If you plan to use this pistol for defense, I'd advise that you practice with an ammo that is about the same weight as the defensive ammo you plan to use. You should also make sure the gun is reliable with your chosen loading. I usually go through 150 rounds in a gun before giving the OK for carry. If you aren't looking to carry it, just shoot a box of your defense ammo when you can to test for reliability.
The 124 grain +p Gold Dots would be my load of choice for that gun. They have better velocity than their 147grn counterparts and give you more energy at the muzzle. I know thats not all there is to it, but when you are looking at an expanding bullet, that bit of extra velocity helps.
Oh, the Jericho can take the +p loads without trouble. I wouldn't shoot em all the time, but it shouldn't hurt it too much. The CZ clones are tough.
Oh, if you want cheap practice ammo, Cheaperthandirt.com has Wolf for a decent price. Check local gun shops for surplus stuff as well. Beware though. Some surplus is corrosive and some of it can be really hot. SMG ammo is not good for pistol actions.