Yes you can use the stock ramrod, and it works good. There are a couple of things to be careful about. Don't try and seat your bullet with the rod extended, start it in the collapsed position, and then when it is halfway down the barrel, finish it off. Yes it is slower, but it is what the instructions say and it works good, slow, but good. The other thing is the ramrods have a non standard thread pitch size, I can't remember off the top of my head, but it is not what normal ramrods have. It may or may not matter to you, but the tip that is included on the ramrod is flat, so it kind of messes up the new plastic tipped sabots. You can get a replacement ramrod from here
http://www.hubbardsoutdoorproducts.com/drop.html, it works really well, is built hell for stout, is about 2" longer than the factory one, and it uses standard thread pitch for normal muzzleloader accessories. The one that comes on the ramrod is also concave for pointed bullets. The .25 acp breach plug is located at
http://www.prbullet.com/hornet.htm . The ramrods are about $30, and if I remember right the breech plug is around $60. I have both and recommend both highly, are they needed? Not really, but are they a nice upgrade? Yes they are. Any more questions, feel free to ask.
~Amos