I built one from the young model, it has Trulock 565 in it with Simmon's pro diamond scope,i wanted just little more open pattern for the closer shots and it has performed awesome. I'm still shooting the Federal HW 7 in this gun.. I've still have plenty of these shells. I have setup 20 ga Steven 301t for longbeards but have had a chance to shotot it yet because of the weather. Good luck with your build