Well depending on your target animals I think your 300wsm is just fine. I too just got into LRH and have a Sav. mod. 11 in 300wsm and this past summer ,have gotten very consistent out too 600 yds with 180 AB's. At the middle of October I discovered that berger 190's shoot even better ,so now once deer season closes in Dec. I can get back out to the farm where I shoot, can't have a centerfire rifle afield in my county during any open season for deer shotgun , muzzleloader and pistol only.
Anyway my point is you can stretch the 300wsm farther then 500 yds. at least on targets and deer sized game.. Good luck and have fun.