ScottIC,
I was using my Nikon D50 with the Tamron 300 2.8 lens. That lens is an old manual lens I bought close to 20 years ago for my Canon FTb.
With that lens there is no metering, so before I hit the gravel I take a picture check the lighting and set the metering accordingly.
Most of the time with my other lenses I use aperture priority.
when driving around I usually have the lens set on f4 and the speed around 1/1000 depending on light. most of the time I am way below 1/1000
the buck crossed the road about 60 yds from me, I have the picture cropped quite a bit. I also set the ISO to 800 instead of 200, which I usually keep it at. That gave me 2 clicks faster on the shutter speed and I have a program which takes out allot of the noise (grain).
Jack