Re: 300g scenars or 250g AB
A 9 twist is WAY more than enough to handle the 225. Most 300 grainers will work in an 11x and most guys running big 338s are using 10x. Some are using 9.3. 9 twists are more for some of the mono metal heavies.
My twist is 1-10.
Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.