Been offered the proverbial 'too good to be true' deal on a Win Model 70 from last year that has only be used for one hunting trip. With a 24" barrel and the standard 10" twist, what is the heaviest bullet one could shoot? I know that the 170gr Hunting VLD won't work and likely not the 160gr SPBT. I'm torn, as it is being offered at such a good deal and I was going to build an elk rifle.