west coast x-treme load data

I am new to reloading and am about to purchase my first batch of bullets. I can get lasercast 158gr or west coast x-treme 125gr - 158gr for the same price. I am having trouble finding load data for the west coast x-treme copper plated bullets. In my Lee manual(copper plated 125gr), it has a listing of 4 loads: accur #9-11.8 gr, accur#7-10.1 gr, accur #5-8.0 gr, and accur#2-6.2 gr. accur #9 being the load that fills the case most. I thumbed through the reload guides at Sportsman's Warehouse and couldn't find copper plated bullets listed. I have searched through this site and found interesting that some people say to load them as you would lead. I called their 800 number and a nice lady told me x-treme bullets recommends the Speer Manual loads for any of their jacketed bullets. Does anyone have any good loads for these copper plated bullets. If so could you share with me? I also need to know what primers (mag or reg) and min oal if you have it. I have already bought some unique and trail boss. Thanks in advance.

Hi Gaston,
We wouldn't mind sharing information with you but...
You didn't say what calliber you were loading. It sounds like .357, But I don't want to guess.
So how about: What kind of firearm ?
Which calliber ?
How long is the barrel ? (Some of us like to use faster powder in short barrels and slower powner in long barrels)

Thanks,
Al

Sorry about that. I will be firing them from a .357 4" Ruger GP-100. I also have a .357 Ruger Speed-Six that has 2" barrel, but I am mostly interested in the 4" GP.