Minimum eye relief?

[Inukshuk]

I know if you don't have enough eye relief with your scope on a high caliber you can browse if not hit your eyebrows or forehead. Now would 3"'s of eye relief be enough for a .223 and 308? This is important cause the scope I'm interested in for these two calibers has only 3 inches of it, so I want to make sure I'm okay before spending.

 

[James Jones]

3" on a 308 should be fine unless its realy light and the stock doesen't fit you , and the 223 would be no trouble at all.