Yes I have fired the .455 Webly and it's a pig. Even if you put lipstick on it, it's still pig. A shooting buddy of mine had the "tanker's version" revolver. It had a cut down rounded-hammer so that ostensibly it wouldn't hang-up on the turret ring when the commander brought it into battery. The trigger pull was around 28 lbs! I advised my buddy to obtain two. One to shoot with and the other to cover it up. The difference in their cartridge and ours was more than enough to make the .455 obsolete by 1946! As you may know, after W/W II the trend in NATO was to standardize ammo. In large measure today, that's what they've done.