Don't know if they come in a 5" barrel version yet and if so, does it have porting. I read Graybeard's product review and it sparked my interest but would like to know what kind of velocity decrease a shorter barrel would give with 370 and 400 grain cast bullets as velocities are usually quoted from 7.5" + barrels. I'm usually a Ruger man but just don't like the SRHK models with the longer barrels and having the barrels on them cut back and a new sight installed just adds to the cost. I would like to see some testamonials regarding the Taurus 480, so come on guys convince me to try one.....Thanks.....RW