This is a good reference site, .300 WSM @ www.reloadersnest.com
,unfortunately it doesn't have any load data for the 300WSM with Win. WXR and some of the loads listed seem kinda stiff for the 300WSM with Reloader-22.I took my 300WSM up to 71.0grs of WXR,with a 165gr bullet before I started getting a sticky bolt.I backed off to 69.0grs of WXR and I get around 3020fps and was getting the same thing with the 69.0grs of Reloader-22. I haven't had much luck finding load data for the 300WSM either.So I just started low and worked my way up and watched for signs of pressure and backed off.The thing I found interesting,is I'm loading the same weight charge in my 7mag with IMR-4350 and Win. WXR with a 150gr bullet as I'm loading in my 300WSM with a 165gr bullet.