You have to use an app like Tapatalk to post pics straight from your phone.

Your situation sounds totally normal. A bullet needs to push into the barrel contours (i.e. 'lands/grooves') for your bullet to spin so it's gonna leave marks.

If you look at a fired bullet it'll have 'stripes' on it also (Google pics is your friend). You'll also notice if you take a cartridge and put the bullet end to the end of your barrel (please take your barrel out to try this), it won't just slide in. The same thing applies from the normal/chamber end because it needs the energy from the powder to force the bullet down the barrel. It's also the reason why if a round has too little powder ('squib'), it can get stuck in your barrel (i.e. not enough energy).

I'd suggest you take a firearms class since most should cover these kinds of topics. As an eye opener, google 'squib load'. It doesn't happen often but it's the kind of thing that can get you hurt when you don't know, what you don't know.

Welcome to the forum.