Re: looking for suggestions
If you like the 7mm go with a 7mm STW with a 9 twist to shoot the heavy bullets with hi BC. you may want to move up to 30 I would think about the 300 win mag 308 Baer or a 300 ultra mag 10 twist you will probably want a brake installed on the Ultra mag. Then you could move up to the 338 My favorite for long range work the 338 Baer or 338 ultra mag or use a 300 ultra and imp and stuff a 338 bullet. The 300 ultra in a longer case.
If you think something is not possible move out of the way so the ones that are doing it can