The 45 ACP bullet is kind of undersized. The Webley was created to shoot a hollow centered bullet like a Minie ball. After i experienced one I'd no issue getting 455 Colt ammo for it. 1 other thing. I just found out that even though 455 webley is just not https://45brass41740.slypage.com/38528299/details-fiction-and-45-acp-brass-with-lare-primer-pockets