Check out this old thread I posted on .38 ACP ammo:
Is your 38ACP ammo REALLY 38ACP??
Stay away from that hollow point stuff you speak of. Don't fire any factory .38 ACP ammo through it that has a nickel plated case. I believe anything with a nickel case is rated for 38 Super and could ruin your gun. Also if these guns fail they can cause serious injury.
As you will see from my thread 38 ACP ammo can be a little confusing.
Ammo's not easy to find for these but it is out there. And when you do find it these guns are a joy to shoot and very accurate. I shot this 7 yard group offhand with mine at about 10 yards: