Had one up until recently and sold it. I will say that it is an excellent little round ,very accurate , low recoil , excellent for NRA Hunter's Pistol and useful for varmit shooting at 100 yards or less. With all that said why did I get rid of it ? Well I like the little 30's better. For the Field Pistol I use my 32/20 and my 30 Carbine . The selection of .277 bullets is limited for the 10" velocity and I was not able to work up any cast bullet loads that I liked (or the barrel liked) for the 270 Ren. If you get one with the intention of shooting the 90 Sierra and H110 powder 3/4 to full velocity it is a great round and will do everything you expect of it. I had thought of having a revolver rechambered to the 270 but never did and thought it would have been a wonderful shooter with a 85 CSW at 1500 or so. By all means get one and try it because you will be pleasantly surprised with the accuracy and almost absence of recoil. I now have the two little 30's , a 30/221, 30 Herrett and 30/30--14" TC's. If you don't currently have one a 10" 22 Hornet is also a very nice caliber for a 10" Contender. Good luck on you efforts my 2 cents worth on the caliber.
