Belive it or not.... a six inch 29-5. With either a speedloader reload in a safriland holder or a belt slide six round loop job. Depends on the shirt I wear. I use a galco summer comfort for a four inch n frame in the summer and a galco wheelgunner in the winter that is actually for a 5.5 saa. It fits perfect though. Ammo is mid range magnum handloads @ 1100 fps. 240 gr xtps.