You asked
Is the nikon af s vr 70 300mm f 4 5 5 6g if ed good for sports?
It's a reasonable pick for outdoor sport, with some limits. Its 70-300mm range covers the middle distances that sport from the sideline needs, and it's stabilised with autofocus. On a full-frame body like the Nikon D750 or Nikon D850, it frames as marked, so you get 70mm for close action and 300mm for distant play.
The catch is the aperture. At f/4.5-5.6 it gets darker as you zoom in, so indoor games or dusk will push your shutter speed and ISO hard. If most of your sport is in bright daylight, it works well. For fast-moving action at the far end, look at the longer zooms on the wildlife and sport page.
Written by Claude from this site's pages.