I picked up a pound of winchester WST super target powder today. The problem is I cannot find any load data on this particular powder. The guy I bought it from said it was very similar to winchester 231 and to use that load data for that. The 231 is listed in my data book. I'm wanting to load .357 with a jacketed 125 grain hollow point. I have looked on the winchester web site and they don't list it too but the 231 is listed. My question is do I use the 231 load data? Is this a replacement for the winchester super target? I'm just wanting to load for some plinking not really for hunting. Im planning on shooting them in a lever action rifle and handgun too. Also I am new at this reloading deal and don't want to get off on a bad start. Any advise would be greatly appreciated