308 is fine for coyote hunting. just use a lighter bullet. Of course if you get really hooked on hunting them and start selling the fur buy some thing smaller I would not go below 22 cal and if it is windy in your area I would stay in the 6 MM area like 243.
Learn to sew the holes if your selling the hides too.
Most of my friend and my self just sell the whole carcass to a fellow hunter who gives us about 50% of the hide market value and we don't have to do all the work.
We also hunt in some thick woods and cedar swamps. A 12 ga. with #4 buck works great.

Also if you get hooked you can build your own caller for less than $50.00 and use a MP3 player to hold the sounds. You can get the sounds free from Varmint Al's web site and wind river.

Here is a link to my home build and links there to other places about them.

http://thunderbucks.com/tbforum/inde...pic,125.0.html

It is addicting.

Al