Originally Posted by AkMtnHntr
If I have a scope that is 11.4"s, what size cover should i select? 11??
The sizing rythm works like this: Round tube length to whole inch, then subtract an inch for stretch.

So 11.4" rounds to 11. Take an inch off to make 'er snug, and you should have a 10" cover which is our SS10.

The joy is that ScopeShields are very forgiving in fit, and you will find often that a single cover will fit a number of your scopes interchangeably.