I would say in western oregon where your hunting the dense jungles of the cascade or the rain forrest of the coast range the average shot is 50yrds or less, many of the blacktails i have shot have been less than 30 yrds, the longest was 150yrds thru a clear cut. they are sneaky little critters. I'm sure down in California you would have a longer shot as its more open country. my favorite way to hunt them is still hunting. up here theres not really a good way to spot and stalk as the forrest is too thick.
I think the first eight deer I shot were under sixty yards. It had a lot to do with how I hunted. I've since dedicated a lot more time to glassing and have opportunities out to almost three hundred yards. It is definitely not as wide open as a lot of Colorado.
Thanks for the answers guys. I worked with a guy from Oregon over the summer and he described it as an absolute jungle. He said that he would try and hunt logged areas but he mentioned that the shots were still short. He used a lever action chambered for one of the really small lever calibers but I can not remember which one. It might have been a pistol caliber actually. Would that be legal in Oregon. Sounds like your average shots are shorter but if you go looking for it than you can find shot opportunities pushing 300 yards.
The record books, that are put out by Boone & Crocket and Pope & Young and where I live is Henry Kelsey they are a great way to research a state or a province for big game. This does take some time but the knowledge it gives you, can be very valuable. Not all hunters have their trophies recorded, as where I live after the Hanson Buck became the new world record typical Whitetail, we saw a flood of hunters and now that has happened, some hunters are shying away from the record books but...