Out of my Standard .243 Win It like H414 as well as my .243 AI.
My .243 Win is a Rem 700 VLS and it shoots 1/2" or smaller. My .243 AI is a Rechambered accurized Ruger M77MKII with a 22" bbl and It'll shoot 3/4" groups if I shoot slowly. It's a light weight bbl and will vertically string predictably up and to the right due to heat.It's just a light weight deer Rifle.
95g Bergers shoot OK out of both of them, The remington prefers 75g Sierra Hollopoints @ 3450FPS (It's my dedicated varmit Rifle) and the Ruger prefers 100g Sierra Gamekings @ 3020FPS. Hornadys shoot ok, but The Sierras have always shot the best.