Ah wow you have a Ruger Super Redhawk, I had one in .44 stainless, after all my handguns I owned that was always my favorite. Is that the 7.5 or 9.5 inch barrel the picture on the angle I can't really tell for sure, mine was the 9.5 incher.
They are a seriously strong (and heavy

) and reliable revolver, I loaded the hotest .44 loads possible in that (made my own ammo) constantly and it loved it, once I got it so hot you could only touch the grip. I found it very accurate too even with the extra high power loads, with open sites I was hitting shotgun shells at 50 meters sometimes (from a rest), the problem was the the shell is to small behind the open site you can see it and are only guessing.
Only thing I didn't like was after a lot of high power loads the grip felt a little small and the gun front heavy and the edge of the grip started digging into my hand, I ended up getting a after market Hagemeyer grip, which looks awesome and fixed the problem.
After the Super Redhawk (still had plenty of semiautos) I got a Dan Wesson in .357 Maximum (longer more powerful version of .357 magnum) which had the removal interchangable barrel, I was never happy with it and it was not all that reliable.
I can post some pics of some of the guns if anyone is interested.
Only thing I never shot here in Australia was automatic weapons, so when I was in Las Vegas I went to a range and fired a M16 assault rifle and M246 machine gun in full auto, you wont have any trouble finding a range to shoot at over there in most states. I am suprised they dont have ranges you can go to for handguns and rifles in the UK?