Yes! We have had great success the last couple years using the Convergent Bullet HP and Glenn Guess sounds....study up by watching "Hog Zombies" YouTube channel....the call flat works. Be ready! Also...as to your caliber question, 223 will work, but make sure you shoot em in the bean only or you'll likely not find them. I'd opt for something with more stopping power if you're gonna call....the action is fast and close....shot my last called hog at 10 paces.