big rig: someone asked just a bit ago if the 200 grain cor-bon loads were adequate for whitetail and listed the velocity of the load. I thought/felt the cor-bon 200 grain loading was somewhat under the effective loads for that bullet in comparison to the older Winchester factory loads (the 200 grain bullet has been around for a long time for the 38 and the 357). One of the Winchester loads used ww631 which is no longer available but two other loads used ww 231 and ww296 and both powders are still with us. In addition, the 43rd and 45th Lyman manuals listed a number of powders for those bullets, including 4227 that turned out a very accurate load.
ps, don't waste your time with the 180 grain load of theirs, it's not worth the expense. If you don't want to go 200 grains, go for the older Keith style 173 grain bullet - it's a killer, for shor.
I know you can do better with handloads than cor-bon can do. If you talk to them over the phone they will give you a bunch of schmidt about how they use only specially blended powders that are not available in cannisters for reloading and yada, yada, yada. You don't have to concern yourself with their loads, ya'll kin do better by your ownself. Also, you have a number of 200 grain 38/357 bullets to choose from: there are the gas checked cast bullets for the 35/358 rifles that perform very nicely; there is a 200 grain round nose flat point that I would not want to get hit by and there is a 200 grain semi-wadcutter that I now use exclusively in my 38s and 357s. They are the bowling pin bullets and they seem to make alrger holes in the targets than the 158 grain semi-wads do - can't really explain why but it sure looks that way to me. Hope this helps. Mikey.