RE: Winchester chokes
I have a 1300 myself and the factory chokes can't hold a candle to a custom choke tube. If you want to double your hits in the kill zone, get a Hastings Extended Turkey choke sized .665 for $24.95. For the money, that choke worked much better than the factory tube. For $49.95 and a much tighter pattern than the Hastings, the Tru-Glo Strut Stopper .665 along with Winchester 3" HV 1 3/4oz of #5's were a dandy combo out of my gun. Now for the ultimate choke and load, try the Rhino tube .660 for $80.00 along with the Nitro Hevishot turkey loads #H378. This is the finest pattern to date that my gun has shot.
I can now rest in my quest for the Ultimate choke/load/pattern.[8D]