I just read an interesting article on converting a 30-30 to .308 Win. Interesting concept though kind of "already done" with the .307 Win.

http://www.associatedcontent.com/article/1270780/building_the_marlin_lever_action_308.html

"May the LORD bless you and keep you, may His face shine upon you, may He be gracious and give you peace"
from Numbers 6:24-26