Ok guys, I need your help! I got a newer Winchester 1300 20ga. and I have never owned a winchester before or a 20ga. for that matter. It says Winchoke on the barrel so is that the only choke I use? Now what size choke tube and size shot should I try first? I got the gun for my Granddaughter and she is ready to hunt but we need to build her a turkey killer LOL! Im just lookin for a decent 30yrd or less pattern so any info on this would be great, I know Im in good hands so lets hear what ya's got to say! Thanks Crappiepro