I changed my sporter over to heavy barrel without ever in firing it. Put on a McMillian stock, Leupold 6.5x20 LRT scope, jewel trigger,and lilja barrel and it will out shoot my 40x, 52's. Shot groups off the bench at 100 yards in my indoor range that were in the 2's and 3's with federal 711. If you need a sporter stock,jewel trigger or sporter barrel PM me. You will enjoy shooting it it's scary accurate.