Originally Posted by FOX_111
My MK18 is at 350fps. I use it outdoor and indoor no problem. If your indoor is 310, then it's not low enough to mather outside.
We used to play at 280fps outside in 2002 and the differance in range compared to the rare 400fps rifles was not that much. Back then, everyone was encouraged to play stock (280fps).
As they are now... except stock is 420 FPS now
Here is the trick
WE GBBR M4, with an indoor bolt shooting 310 and an outdoor bolt shooting 400+