It is quite possible to have 15 or 16 300's, I know a couple of guys that I bowled with in the junior leagues with me that had like 8 300 games when I was bowling with them, its all about your style of bowling, if you can hook it right, if the lane has enough oil and espically what kind of ball you use.
Its very possible dude, a 300 isn't the hardest thing in life