not aware of any permanent places for 3d shoots, but if you go to a local archery shop they should have info on any that are around. They should also have info for all of the 3d shoots that archery clubs hold every year. There are dozens every year, there is one this weekend Aug 7 and 8 at tht Cascadian Bowmen range in Noti just west of Eugene.
One of the most important pieces of equipment that you will take hunting is a good quality pair of optics and they take some care to give you the performance that you want. So here are a few tips.
Use some alcohol and cheese cloth to clean the lenses. I will usually pick up an extra cleaning kit from my optician when I have my eyes examined.
Don't touch the lens with your fingers. If there is a stick or a bug on them blow it off.
Use the lens covers. They are there...