ok this is my first post i am brand new to gt and have been researching every brand of pistol i can think of and i am def. getting a glock. Now the only thing i need to decide on is the caliber. the gun is going to be for cc im a really big guy 6' 4'' 340 i can control just about any caliber i have ever shot. im just not sure what calibers are best for different situations. such as shoting through walls, cars, distance, etc. Thank you, D. Lo Wanna kill these ads? We can help!