Not that exact combination but you never hear about the Ballistic Tips coming apart in flight. For accuracy I think you have a good chance to find a good load. I know a guy who shot a nice Mulie with the 55 gr BT out of a 243.
Can't see you having any issues with the Ballistic Tips and it's very unlikely the Varmageddon will either. If you have the gun already I would give it a try.
Looks like a good start. Vihtavouri powders seem like really good stuff. if you can get those speeds safely that's pushing on the lower end of 300 WSM performance. In my last 30-06 I tried RL 22 with the 220 gr Partition and got 2550 fps, this is definitely a step up in performance. If you can...
Yep shot my first moose in 1990 with 220 gr Silvertips from a 30-06 at slightly less speed than a 300 H&H. Had jacket core separation on my 2 nd shot but they worked. First one sailed right through. Shot my first black bear too with that load.