As clearly stated on the product label, the .45 Colt Scraper is designed specifically for .45 Colt cylinders. It is not long enough to reach the chamber throats of a .454 Casull cylinder. The scraper likely became stuck because residue had accumulated in the chambers from firing the shorter .45 Colt cartridges. For a .454 Casull cylinder, you need our longer .460 Magnum Scraper, which can reach the chamber throats.
Downloadable instructions for the scraper are clearly provided in the description on the product page. Basic instructions are also printed on the back of the product packaging.
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