Over at the Accurate reloading site there is a lot of info on reduced loads using Blue Dot. I have tried Blue Dot in my 7.62x39, 7mm-08 and 30-06. They are very very accurate and the recoil in very mild.

http://forums.accuratereloading.com/groupee/forums/a/frm/f/2511043

Do a search for Blue Dotor ask for Seafire. He and others have done a lot of testing using Blue Dot. If you decide to try Blue Dot in your 308 just be very carefull NOT to double charge your load.