Hey guys I am looking to start up a new caliber for some long range shooting, I am a old schooler I guess, I currently shoot & load .308 & Tinker with .243win, just as a hobby and have not done any competition stuff. I am shooting 3-500 yards currently, but would like to start to reach 600-1000 yards with any luck. I am currently looking at trying a rifle in 7mm Rem Mag or 300 Win.but would welcome any tips or pointers, pros & cons / reasons why or why not / these calibers? Also what are they using at the local ranges currently. Open to all input....

Sincerely
Jsglano1