Lots of people switching over to slug. But they cost like $15 for only 100 rounds. I saw some .22lr bullets pack of 50 for only $1.93. that's 100 rounds for less than $4. Wow. I don't own a 22lr cause I live in the city and can't shoot firearm. And shooting range charges $25 to go shoot there. My question is, can I buy some 22lr and pull the bullet out and use them in my 22 airgun? They are basically just a slug in a bullet case right? Or are they different size?