A guide for Scouts:
What is a sweet spot?
Sweet spots are a mechanic that make the damage dealt by Scout rifles start and end low, with a one hit kill range in the middle.
This means that there are several guns you should be using for each given range:
Close- Mid (30-80m)
SMLE mkIII, Martini-Henry, Gewehr M.95
Mid-Long (60-100m)
Rusian 1895, Gewehr 98
Long (100m+)
Gewehr 98/ m1903 Springfield
Any of the other gun not listed here do not have the sweet spot mechanic.