Ron, I am not the greatest off hand shooter you will find especially now at my age but if you take a look at this utube video you will see pretty much what I do.
I really like the front hand to come to the front of the trigger guard with the elbow tucked into the body. This provides a very stable base of support. Do not spend a lot of time on the target - locate - sight - and shoot.
These a 1000 different ways to shoot you just have the find the techniques that work for you.
http://www.bing.com/videos/search?q=...13&FORM=VRDGAR
Actually I feel a bit foolish suggesting this because others probably have many different ways. I just know this works well for me...
Also look at the shooter get and establish a really 'solid' cheek weld on the stock - another small thing that will help steady the shot.