A friend and I got in a discussion about his Colt. He said that he had a Delta in .45. I didn't know that they made one. Have seen it and that is what he has. He ordered one from Colt in 10.. and it came in .45 acal. He kept it and reordered. Got the 10mm the second time. Is this an unusual gun, or not. Says .45 on the frame and has delta grips. Any info would be appreciated. This one has got me thinking.