I'm a 835 owner as well. I have a 24 on my 835 and they are probably one of the best patterning guns on the market. A few years ago, some of the guys on here were having problems getting the 20 inch barrels patterning as well as the 24's. With the spring season behind most of us, I would suggest selling the 835 with the 20 inch barrel and getting a new 835 with a 24. Wally world has them for about $375. If they don't have one in stock, check their gun catalog, they can have you one in about a week or 10 days. That is how I bought mine, 12 years ago.