Arduino Servo Library Help: 180 servo getting 140 degree movement only?

I am using 313wp servos right now. However, I can only write them 20 to 160 degrees. What do I need to change in the library? Min and max pulse widths? And how much should I change?

Thanks!

The other thing you can do
is to instead of writing degrees write mS pulses to the servo. I forget exactly how it is done, but, you will be allowed fine grained control at that point.

Thanks guys! I’ll try your
Thanks guys! I’ll try your suggestions!