1. Most of today's pistols, including yours, have rifled barrels. Empty the gun completely, lock its slide open, and look down the barrel toward a light source. The spiral that you see is the rifling.
2. Cleaning with a metal rod would best be done from the breech end. The muzzle end of the rifling does much to control your pistol's inherent accuracy, but using a rod from the muzzle end will wear away that part of the rifling. If you can find a rod guide, which prevents the rod from contacting the muzzle, you might clean from the muzzle. But it's better to use the rod from the breech.
When cleaning from the breech end, do your best to keep the rod from touching the barrel's muzzle by stopping your stroke while the some of the patch or brush is still within the barrel. This will eventually ruin a brush, but brushes are cheap, compared to barrels. And patches clean better on the return stroke, because they fit more tightly in the barrel.
If you still prefer to not disassemble the pistol for cleaning, don't use a rod. Instead, use the appropriate size of "bore snake," a fabric-and-bronze-brush device that is flexible enough to be inserted into any barrel from the breech without first requiring pistol disassembly.
BTW: Rimfire guns don't require a lot of cleaning. Don't obsess about it. Mostly, remove the gunk and dirt from your pistol's action, keep the whole thing very lightly oiled to prevent rust, and pass a cleaning device through its barrel every couple of months.
Side Note: As a new shooter, do not expect accuracy from your pistol. That is, your new pistol is much more accurate than you are, and you will need to learn good shooting technique before your new pistol will deliver satisfactory accuracy in your hands. Shooting a pistol is not easy, and the learning curve is steep.