You can find brass or steel rods at Home Depot, Lowes, Ace . . . just so you know.
Get a hammer there if you need one.
It sounds to me that you (FLReb) are just a little apprehensive, since you have never dealt with something like this before, but go ahead, and pound it in, and shoot it out.
That bore needs to get cleaned soon, it's going on two weeks . . . take it to a gunsmith if you don't want to do it.
Think of this little bump in the road as a learning adventure, soon you'll be an old hat at this, and be helping others you have found themselves in such a predicament!