I have been looking for a rifle for my 17yo son (and me) for some time. Several nice offers here but broke down and found the H&R .308 w/ bull barrel, scope, etc. at Dicks. Great Price and they even took coupons to lower the cost. Seems to be a nice little shooter. Have not had a chance to shoot yet but just wondering if there is anything I should do prior to trying? Read about the O-ring on the forend and just wondering if that is a idea? Other tweaks tried would be good to hear about.