Hi Ashley,
When I originally came across this problem, I was convinced my barrel was damaged and I screwed up a brand new gun.
Here's exactly what I did. Take the set-screw out, pull the barrel off and the receiver out.
I went to Bass Pro Shops, picked up G96 Nitro Solvent ($9.99). It doesn't have to be that, but make sure what you buy says it should say removes lead/leading. If you can't find it, you can use 50/50 mix of white vinegar and hydrogen peroxide.
Pour or spray the mix down the barrel, from back to front. I used my finger to plug it up initially. I then laid it on it's side for about 30 minutes to soak, rotating it every 10 minutes or so.
Then, use a pistol rod - no brush yet - and just bump it down the barrel. An aluminum or copper rod won't damage your barrel. Using the rod only, will keep your brush from getting stuck (like mine originally did). I then soaked a .17 copper brush (about $2 at BassPro) through it. Once it went through clean, I resoaked the barrel again, let it sit for another 10 minutes, attached the .22 copper brush and continue working it through. You'll be amazed at all the lead that comes out! Your gun will be fine!! Just spend some time, don't rush it. My problem now is what to do with all that 'extra' ammo now. I'm only shooting 50 rounds at a time with it. I shoot 50 rounds with Remington Thunderbolt, then move to Armiscor hollowpoints that have brass or copper tips. It cleans it back out. But, this will not completely do it for you. When you're home, resoak the barrel and clean it out again. You'll get a light strip of lead, but nothing like you'll see the first time.
Don't fret - it will be ok, promise!!
Good luck, if you have any questions, don't hesitate to ask!
-- P.J.
I, too, just purchased the SW22 Victory. I took it to the range on Sunday and shot approximately 300 rounds of the Remington Thunderbolt 22LR. I've had this gun for less than a week. Shot it three times. The barrel is completely blown out. I'm absolutely heartbroken!