I had a 450 Titanium Taurus and at 19 ounces it was easy to carry but I did not like the porting the the action would bind-up. A five shot .45 Colt snub nose makes a lot of sense as it is a low pressure round and is pre-expanded 11.5mm so a good hard cast with a large meplat at even 800 fps would put a hurt on a B/G.