Despite not reading all posts, I can assure you that running a brake is going to reduce recoil to very little.
Any 100g non-bonded bullet is going to be very destructive on game.
A better option would be a 120-125g bullet of bonded construction or a Partition.
These work very well on deer sized game and especially hogs. You can step up to a 130g Accubond.
In my custom 264WM, with 29" barrel, it will push the 130's to 3600fps and they hold together well.
Speer make an excellent bonded 120g bullet that should cover all the game you will be shooting, the 264WM is superbly accurate so feel confident that it will get the job done.
Cheers.