The 454 Casull is one cartridge that Buffalo Bore Ammunition does not load to its full pressure limit. When loaded to its full pressure potential the 454 Casull can become unreliable and unpleasant to shoot. At upper-pressure levels, heavy bullets tend to jump crimp - tying up the cylinder. (wouldn't this be great in an emergency) Also, fired brass can stick in the chambers. #html-body [data-pb-style="62DF828832454"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF828832461"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}