--- title: "Buffalo Bore 45-70 Govt Mono-Metal 380Gr Ammo" description: "45-70 Govt ammunition with a 380 grain mono-metal bullet and 2075 fps rating. Packaged 20 rounds per box for deep straight-line penetration." canonical_url: "https://www.kygunco.com/product/buffalo-bore-45-70-govt-380gr-mono-metal-2075fps-20rd" meta: author: KYGUNCO "og:description": "45-70 Govt ammunition with a 380 grain mono-metal bullet and 2075 fps rating. Packaged 20 rounds per box for deep straight-line penetration." "og:image": "https://cdn.kygunco.com/assets/products/292630/thumbnail.jpg?v=1757960961" "og:image:height": "500" "og:image:width": "500" "og:title": "Buffalo Bore 45-70 Govt Mono-Metal 380Gr Ammo" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Ammunition](https://www.kygunco.com/category/ammunition) / [Rifle Ammo](https://www.kygunco.com/category/ammunition/rifle-ammo) / BFF-8DG 380/20 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/292630/main.jpg?v=1757960961) For illustration purposes only, this image may not be an exact representation of the product. # BUFFALO BORE 45-70 Govt 380Gr Mono-Metal 2075FPS 20rd Buffalo Bore 45-70 Govt ammunition with a 380 grain mono-metal bullet, rated at 2075 fps and packaged 20 rounds per box. Built for deep straight-line penetration with a flat-nosed profile and the handling advantages described for mono-metal bullets. $93.99 --- $4.70 per round ** 5 interest-free payments of **$18.80** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 292630 Style BFF-8DG 380/20 UPC 651815008509 Condition New Manufacturer [Buffalo Bore](https://www.kygunco.com/brand/buffalo-bore) Units Per Box 20 Caliber 45-70 Govt Weight 1.92 lb Mono-metal bullets offer several advantages—and a few disadvantages—compared to typical non-expanding hard cast bullets. These pros and cons may vary in importance depending on your intended use. ### Advantages - Cleaner burning and firing than hard cast bullets - Resist nose deformation when striking large bones at close range and high velocity - Maintain better straight-line penetration due to consistent nose profile - Penetrate far deeper than lead-based bullets of similar weight ### Disadvantages - Higher cost due to material and manufacturing complexity - Reduced case capacity because mono-metal bullets are longer for their weight For example, the **380 gr. mono-metal bullet** used in our DG .45-70 load is as long as a 500+ gr. hard cast bullet. This length reduces available space for propellant in the .45-70 casing, requiring careful selection of powders that deliver high velocity without exceeding **43,000 PSI**. Case capacity challenges are even greater in smaller cartridges like the .44 Magnum. Lead-based bullets, being heavier for their length, allow more room for powder and are easier to load to high velocities. Despite these challenges, flat-nosed, lightweight mono-metal bullets consistently outperform lead-based bullets in straight-line penetration—often dramatically. ### Performance Notes This **380 gr. mono-metal .45-70 load** creates a massive wound channel due to its large meplat and penetrates deeply in flesh and bone. It is not ideal for deer hunting, as it could pass through multiple animals if lined up. For thin-bodied game like deer, an expanding bullet with shallower penetration and a larger mushroomed nose is more appropriate. ### Real-World Velocities - 2,135 fps – Browning Miroku 1885, 28-inch barrel - 2,068 fps – Winchester Miroku 1886, 22-inch barrel - 2,047 fps – Marlin 1895, 20-inch barrel - 2,021 fps – Marlin 1895, 18.5-inch barrel These velocities were recorded using **real-world firearms**, not laboratory test barrels, ensuring accurate field performance data. This load is specifically designed for large and dangerous game animals. It is suitable for taking down: - Bison - Cape Buffalo - Elephant You can shoot a bull elk lengthwise with this load and expect full penetration—the bullet is likely to exit cleanly due to its deep straight-line penetration capabilities. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Shop 45-70 Govt Firearms ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/buffalo-bore-45-70-govt-380gr-mono-metal-2075fps-20rd#webpage","@type":"WebPage","description":"45-70 Govt ammunition with a 380 grain mono-metal bullet and 2075 fps rating. 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