You are getting a lot of good stuff here. Before I forget If you are planning on hunting make sure you check the local laws where you plan to hunt as there are some restrictions in some areas as to what you can hunt with (some require open actions, some do not allow sabots, some require .50 cal minimum, some do not allow smokeless muzzleloading rifles like the Savage, etc,). By the way Savage is the only smokeless powder rifle at this time other than some add on barrels from an outside supplier so DO NOT USE SMOKELESS POWDER unless you have the right rifle. The suggestion for a flintlock should probably be set aside for a second or third rifle. I have several caplocks, a couple of inlines and just bought my first flintlock. There is a lot more to deal with using a flintlock.

http://elitetacticalsources.com/sportsmanDIY.htm not specifically to answer the "how difficult" question, but that page has an amazing amount of linked info on it. No end to the trails.

By the way, Spiffy, I was just at Midwayusa.com and saw that they have a video by Thompson Center that covers the basics of Muzzleloading. It's only $7.99. They also have a more expensive one that includes more stuff.It might be a good idea to see someone else actually loading a ML, rather than just reading about it. Of course, the best thing is if you can find someone who can give you some personal instruction. Just a thought.

IM jaybe