I have a Bps and bought a factory 24" barrel this year for it. It had a 26" and like you said, with a extended choke it felt long. The 24, while only 2" shorter, feels much better balanced, and a lot better with extended choke. If i were cutting a barrel for it, i think i would do 20"-21" if possible. With a extended turkey choke it would still put you under 24"overall. The problem with the 10 gauge is the receiver length has to be so long to cycle the 3.5 shells, so the overall gun length with even a shorter barrel is going to be long. But every bit helps, especially in balance and manuverability. It even feels lighter because of the balance, even though in reality it's only probably a couple ounces. It is definitely louder, which may or may not be an issue for you. I don't know if anything i posted helps, but hopefully someone who has shortened a browning barrel can answer you more specifically on the how and where of doing it. Good luck on your project, and please post up your progress if you go this route.
