I say look at what you like and can afford . Seems like everybody is making long shooters. Ruger M-77 VT, Howa 1500, FN psr, Remington 700 sps, Tikka t-3, Springfield White Feather,and many more. I would not go smaller than 30 cal. when you what to get out to 1000 meters. I have been shooting 1000 meters+ since 1975 and presently shoot 1000 meters with a Springfield "loaded",a Yugo 48 Mauser, Remington 700 adl (stock) 30-06. I load the 30-06 with 240gr Sierra HPBT @ 2450 and are transonic 1300 meters+. Military sniper rounds are 175gr Sierra HPBT running@2550fps and are transonic to@1200 meters. Blitz and 800+ meters with Iorn sights with a Sharps 45-110. Blitz