@ Tacklebury, believe it or not, I had already read that entire thread. Like I said, I've spent the better part of two weeks reading through this forum and have already learned some things that I would never have thought of that would affect the accuracy of any rifle. Gonna take the advice of a lot of folks on here and try some Winchester 45 grains once I get the barrel polished with JB.
I'm getting really interested in some of the higher caliber barrel options for these Handis. Gonna have to wait though. Got a bum shoulder, had surgery back in December and will be getting cut on again to have about half an inch of my collar bone removed here in a couple weeks. Shot my buddy's Marlin 336 the other day and felt like someone hit me in the shoulder with a damn baseball bat! So, the .223 will be about as powerful as I go for a few months anyway.