Sorry but a 1.76" load doesn't work in a 1.7" cylinder.
Obviously, the .45 runs away at equal pressure. It has greater case capacity. Which is why I always say it doesn't even really come into its own until you get into five-shot territory. At which point, I'd rather have a .475 or .500. It's irrelevant in this case because the guns are not of equal strength and cannot be run at equal pressure. And if you're going to run the .45 at 40,000, then let's run the .44 at 50,000.
