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HSM built Magnuforce Subsonic specifically for people who want real subsonic performance without cutting corners. This isn't some watered-down load that barely qualifies below the sound barrier. Every element is purpose-built to keep the 240 grain bullet subsonic while delivering the kind of punch you expect from 10mm.
The heavy-for-caliber approach means maximum energy transfer downrange. HSM uses temperature-stable powders so these rounds stay subsonic even in cold conditions. The wide flat nose design creates efficient wound channels and smooth feeding, which matters when you're running a suppressor or demanding consistency from your pistol.
The hard cast lead bullet wears a Hi-Tek coating that molecularly bonds to the projectile. This prevents barrel fouling that typically comes with lead ammunition, especially in piston-driven guns like Glocks. You'll spend less time scrubbing your bore and more time at the range. The coating also reduces smoke and eliminates the residue buildup that frustrates people shooting cast ammunition.
Muzzle velocity comes in at 1017 fps from a 16-inch barrel, delivering 551 ft-lbs of energy. That's enough for target work, competition, and hunting applications. HSM chronographs each lot across a broad temperature range to ensure round-to-round consistency. The ammunition is new production with boxer primers in reloadable brass, so you get clean ignition and the ability to reload these cases later.
This load runs clean, cycles reliably in both suppressed and non-suppressed setups, and delivers the accuracy people have come to expect from HSM. Whether you're running a silencer or shooting wide open, Magnuforce Subsonic gives you controlled performance with no compromise.
Subsonic ammunition travels below the speed of sound, which eliminates the supersonic crack that comes from faster bullets. When you pair subsonic rounds with a suppressor, you get significantly quieter operation. Even without a suppressor, these loads cycle cleanly in both modern pistols and carbines, making them ideal for tactical training, hunting, and anyone who wants reduced noise signature.
These are engineered to deliver consistent cycling in properly functioning 10mm handguns. The boxer primers and brass cases feed reliably, and the flat nose profile ensures smooth operation. However, some pistols with very tight lockup or heavy recoil springs may require a test run. HSM's quality control means you'll get consistent performance from box to box, which helps identify any firearm-specific issues quickly.
Hi-Tek coating molecularly bonds to the hard cast lead, creating a protective layer that dramatically reduces barrel fouling. This means less time cleaning and more time shooting. The coating also reduces smoke and prevents lead residue buildup that frustrates people shooting cast ammunition, especially in Glocks and other piston-driven designs. You'll notice cleaner extraction and easier maintenance.
The 240 grain heavy-for-caliber bullet with its flat nose design delivers excellent penetration and energy transfer, making it suitable for hunting medium-sized game. The subsonic velocity and Hi-Tek coating also make it clean and reliable for hunting in noise-sensitive areas. At the same time, it runs great on the range for practice and competition, so it's genuinely versatile for different applications.
| UPC | 810742029777 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 10MM17N |
| Caliber/Gauge | 10mm |
| Grains | 240 gr |
| Length | 3.1000 |
| Units per Box | 20 |
| Cost per Round | 1.45 |
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