I can't get the console to go past line 300

Are you saying that the console will not display any more lines after the first 300, or that the console will only display about 300 lines of text at a time? If it's the latter, then you are correct, I believe it is about 298 lines actually. If you are needing output for more than that, you should probably consider writing to a text file, rather than displaying on the screen. I'm sure that there might be a way around the 300 line limit, but I'm not sure what it is.