- Subsonic expanding bullet — engineered to expand reliably at velocities as low as 900 fps
- Patented Flex Tip insert within hollowpoint cavity initiates consistent upset at low velocity
- Lead core with gilding metal jacket featuring long grooves to aid controlled expansion
- Cannelured jacket allows positive case crimp — reduces bullet set-back in semi-automatic firearms
- Flat-nose profile designed to fit, feed and function in semi-autos and gas-system guns
- Meets FBI protocol for terminal ballistic performance — deep penetration below sonic threshold
- Component reloading bullets, .452 diameter, 395 grains — sold in boxes of 50
The Hornady Sub-X (Subsonic — eXpanding) is a component reloading bullet engineered to expand reliably at velocities well below the speed of sound. Built for .45 calibre handloaders, this 395-grain, .452-diameter bullet pairs a lead core with a gilding metal jacket that features long grooves to encourage consistent expansion. At the nose, a patented Flex Tip insert sits within the hollowpoint cavity, initiating reliable upset from velocities as low as 900 fps — making it well suited to suppressed firearms and subsonic handloads. The flat profile aids feeding in semi-automatic pistols, while cannelures on the jacket allow a positive case crimp, reducing the risk of bullet set-back during cycling. Hornady report these bullets meet FBI protocol for terminal ballistic performance, offering deep, straight penetration on target. Sold as component bullets for handloading; available in boxes of 50.
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