All I found for .357 Magnum was this one:
Cheaper Than Dirt seemed to be stocked with those calibers.
I have just shy of 4000 rounds split between 9mm and 45. Of that, I have 1000 rounds each of Federal HST +P for both the 9 and 45, with the balance being FMJ for range work. Currently going thru about 50 rounds of each FMJ each week at the range, but that will most likely go up soon because I am waiting to receive a new Ruger PC Charger. I buy my ammo 1000 rounds at a time from Bulkmunitions.com, and grab it as soon as it appears.