I have both a m-77 (30-06) and a m-77 ul (270). The three differences are 20"barrel, plus the barrel is tapered thinner, and the stock is slightly slimmer especially in the forend. I have a VXII 3X9 on the 06 and a nikon 4X buckmaster on the 270. So the UL is noticeably lighter. I think it feels more like a 22 magnum, perhaps a little heaveir. I lightened the trigger on both M77's and they both shoot quite well. the UL 270 barrel certainly heats up quite fast after a couple shots, so take your time sighting in.