The .58 really is a pleasure to shoot. My load is 110 grains of Goex 2f and a .570 Speer ball. I use the pillow tick patch. I was concerned that the .575 might load hard, but was glad to hear you had no problems. I would bore paste that barrel and knock them ruff spots off, or shoot some conicals. I worked mine in with a Box of Warne Minnie Balls. I was shooting 60 grains of powder and could not hit squat with it. But just watching them hunks of lead hit down range was a good time.

I found that 110 grains and ball will shoot through two 4x4 treated hunks of post. I set two block of it (left overs) and shot the first thinking the second would catch it. Well it caught it all right. Knocked it 25 yards through the woods and passed right through it. That should knock down one of them southern whitetails for you.

Nice shooting for the first time out. You have no reason to be upset. Mine did not come with fiber optic sights. Instead it came with a nice brass front sight and a solid back sight. I can see that real well.