For BG hunting I suggest a primary rifle for one of the following, 270, 280, 7-08, 308, or 30-06. Nothing bigger is needed until you get into 375H&H territory. Have a second rifle that is very similar but less “tricked out” for a different cartridge from those listed. Use it to loan or as a back-up. I have had my primary rifle go upside down shortly before headed out for hunting. Sell everything else and fund great optics, stocks, etc.
If you simply must own another rifle the get a similar xxxx or 223 and attempt to wear it out. DONE !!!
Spend money shooting and going hunting.
My vote for best (though slightly altered) advice.
Jerry
