Since you and that 300 RUM are "old friends", that's the one to take. Make more memories my friend, Life is short. Now, if you just want an new adventure, well, jump on that 7mm mag and make a "new friend". Personally, I like the Barnes monos in a Plains Game rifle, as you can take some pretty angling shots on a Trophy that (a) you went a long way to even get an opportunity for (b) expensive and you pay if you wound/lose it and (c) sometimes you the only shot you get will be one you would pass on with a less penetrating bullet. Thats been my experience anyhow, worth all of what you paid for it, ha. PM me, I know of a shop that has several boxes of 160 NAB!