The IP address of 300smp Minecraft server is play.300smp.com
What version does 300smp use?
300smp server supports Minecraft Java client latest game version to connect and play.
How to join 300smp server?
Open the game Launcher for Minecraft Java client , click "Play" button then choose "Multiplayer" option from the menu. Click "Add Server" tab and input the text play.300smp.com on "Server Address" then hit "Done". Once the connection is available and turns green you may click on "Join Server" button to start playing on 300smp. You may also be prompted to accept the server resource pack, click Confirm to download it.