CVA Endura 45 Smokeless Muzzleloader: IMR4198 Field
CVA Endura 45 Smokeless Muzzleloader: IMR4198 Field. Testing smokeless powder in the CVA Endura bolt-action muzzleloader—one of the few field-proven reviews using IMR4198. Accuracy, velocity, and state regulation { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://greyhive.com#organization", "name": "Greyhive", "url": "https://greyhive.com", "description": "Greyhive is a censorship-resistant video platform for the firearms, 2A, hunting, and outdoor industries — where creators build, review, and monetize unfiltered content.", "logo": { "@type": "ImageObject", "url": "https://greyhive.com/static/uploads/images/ae198483-01c9-44b4-a16a-03f516ceaf66.svg", "width": 512, "height": 512 }, "sameAs": [ "https://x.com/greyhive", "https://www.instagram.com/greyhive/", "https://www.youtube.com/@Greyhive", "https://www.linkedin.com/company/greyhive/" ] }, { "@type": "WebSite", "@id": "https://greyhive.com#website", "url": "https://greyhive.com", "name": "Greyhive", "description": "Greyhive is a censorship-resistant video platform for the firearms, 2A, hunting, and outdoor industries — where creators build, review, and monetize unfiltered content.", "publisher": { "@id": "https://greyhive.com#organization" } }, { "@type": "Person", "@id": "https://greyhive.com/c/mud_lake_ranch#person", "name": "Mud Lake Ranch", "url": "https://greyhive.com/c/mud_lake_ranch", "description": "Mud Lake Ranch is a Greyhive creator producing original 2A, firearms, hunting, and outdoor content.", "image": "https://greyhive.com/lazy-static/avatars/f346142b-4346-4463-a41e-b599c78375be.png" }, { "@type": "Article", "@id": "https://greyhive.com/blog/cva-endura-smokeless-muzzleloader-imr4198-test#article", "isPartOf": { "@id": "https://greyhive.com#website" }, "mainEntityOfPage": { "@id": "https://greyhive.com/blog/cva-endura-smokeless-muzzleloader-imr4198-test" }, "url": "https://greyhive.com/blog/cva-endura-smokeless-muzzleloader-imr4198-test", "headline": "CVA Endura 45 Smokeless Muzzleloader: IMR4198 Field", "name": "CVA Endura 45 Smokeless Muzzleloader: IMR4198 Field", "description": "Testing smokeless powder in the CVA Endura bolt-action muzzleloader—one of the few field-proven reviews using IMR4198. Accuracy, velocity, and state regulation", "articleSection": "Gun Reviews", "articleBody": "The CVA Endura is a .45 caliber bolt-action muzzleloader built heavy enough to run true smokeless powder — and in this field test, Mud Lake Ranch finally put IMR 4198 through it. A 60-grain charge behind a 285-grain CVA PowerBelt clocked 2,332 feet per second on the chronograph, with two of three shots landing inside 2 inches of center at the range. That number matters because almost nobody has published it. As the host of Mud Lake Ranch explains in the video on Greyhive, he reviewed this rifle over a year ago and caught steady criticism for only ever shooting Blackhorn 209 through it. IMR 4198 has been effectively off the retail market for at least two years heading into 2026, so he tracked down a supply, pre-weighed the charges, and went to work. What follows is one of the few first-hand accounts of smokeless powder actually being fired from this platform — including the velocity, the accuracy, the VariFlame primer system, a 30-to-40-minute misfire that killed the first charge, and the state-regulation reality check every hunter needs before buying one of these. (Note: the creator refers to the rifle throughout the video as the CVA Accura bolt-action.) Key Takeaways A 60-grain IMR 4198 charge behind a 285-grain .45 caliber CVA PowerBelt produced 2,332 fps on the chronograph. Two of the three shots fired landed within 2 inches of center — the first shots …