AMMUNITION HPR Police Ammunition
baffl e corrosion inside the suppressor. EMCON (Emissions Control) ammunition was developed specifi cally for use in suppressed applications. It was designed from the ground up with both decibel-drop and cleanliness in mind. HPR HyperClean® technology uses clean-burning powders and lead-free primers to extend the life between rifl e and suppressor cleanings and reduces corrosion while main- taining accuracy. T e use of a Total Metal Jacket projectile completely encapsulates the lead core from powder fl ash, reducing lead emissions that collect in the suppressor body.
On the Range We fi red a couple of boxes of every police caliber load that HPR makes in a wide variety of duty guns. Some of the range time was full-magazine, rapid-fi re to check feed reliability. Some of it was one hand and weak hand shooting to double check the slide velocity for cycle reliability. Some of it was accuracy testing. We compared group sizes and point of aim versus point of impact between HPR’s TMJ practice ammo and their JHP duty ammo.
We shot three of the JHPs into heavily clothed gelatin using the full FBI protocol. T e three loads were 9 mm 147-grain JHP (S&W M&P9), 40 S&W 180-grain JHP (Glock 23), and 45 Auto 230-grain JHP (Sig Sauer P250). If these heavier bullets would expand in ballistic gelatin after heavy clothes, we knew the lighter bullets in each caliber would also expand. In fact, each of these Hor- nady XTP hollowpoints expanded to between 140 percent and 155 percent of the original diameter. Each penetrated between 13.5 and 15.5 inches of BB-calibrated, 10 percent gela- tin in this street-relevant test.
Rifl e Ammo HPR also makes rifl e ammo, of course. Again, they load all the right calibers for police (includ- ing 300 AAC Blackout). In each caliber, they have the right selection of bullet weights in full- metal jacket, (FMJ), softpoint (SP) and boattail hollowpoint (match) versions. We ran fi ve boxes of 223 Rem 55-grain FMJ and 55-grain SP through a Colt M4 (LE6940) during patrol rifl e training. T e ammo was fl awless. T en we shot the HPR 223 Rem 75- grain BTHP side by side against the HPR 308 Win 168-grain BTHP in a friendly “match” at 100 yards. It was a Rock River LAR-15 Coyote in 223 Rem versus a Remington 700P in 308 Win, both of which are sub-MOA rifl es.
22 Tactical Response Winter 2015
S HPR BLACK OPS AMMO USES AN OPEN-TIP FRANGIBLE BULLET. ON IMPACT, THE NON-LEAD, FRANGIBLE BULLETS BREAKS INTO DOZENS OF FRAGS. IT DEFEATS GLASS NEARLY INTACT.
HPR Black Ops Ammo H
PR Ammunition recently introduced a new line of defense-oriented ammo, Black Ops®. As released, the HPR Black Ops ammo is available in the four most im- portant police calibers: 9mm, 40 S&W, 45 Auto and 223 Rem. Black Ops ammo uses Open Tip Frangible® bullets. Frangible bullets transfer 100 percent of their energy in soft targets. Frangible bullets don’t ex- pand (mushroom) on impact. Instead, they break up into small fragments or pieces. This is the fastest, most complete, most reliable way to dump the bullet’s energy into the target.
Instead of a lead core, the HPR Open-Tip Frangible (OTF) bullet uses compressed, powdered metal alloy core inside the jacket. On impact, the hollowpoint-style jacket ex- pands and separates from the powdered metal core. The non-lead core then breaks into dozens of frags, each penetrating on a different path through the target. The frags cause numerous permanent crush cavities and the rapid energy trans- fer causes large temporary stretch cavities. Since the frangible bullet breaks up in the target and transfers its energy there, the bullet will not overpenetrate the target. If small frags do exit the target, they do not have enough weight or energy to cause a downrange injury.
Frangible defensive rounds have ex- isted since the Glaser Safety Slug of the 1960s. The ballistics challenge has always been secondary barriers, i.e., sheet rock, plywood, car doors and auto glass. A fran- gible bullet is designed to break up on the fi rst thing it hits. If the subject is behind any of these barriers, the bullet breaks into frags. The frags would either veer off- course or have too little weight (and en- ergy) to adequately penetrate.
The compressed powdered metal core
of the HPR Open Tipped Frangible bul- let changes all that. Since the bullet has a “solid” core, as opposed to a core of loose birdshot, the OTF bullet penetrates through these secondary barriers mostly intact, and tracks mostly straight after the barriers. The OTF bullet performs in soft targets after penetrating these barriers al- most the same as it does with direct, open- air impacts to the soft target. That said, the secondary barriers like car doors, and es- pecially tempered and laminated residen- tial and auto glass, are extremely hard on all bullets of all designs.
Gelatin and Glass We have been testing bullets in ordnance gelatin since the early-1980s. In bare gela- tin, the Black Ops OTF bullets performed perfectly. The bullets broke into more than a dozen 5-grain to 10-grain frags, and pro- duced more than adequate penetration. The Black Ops bullets are faster, and have more energy than, traditional JHP bullets, and they transfer every bit of the energy and momentum they have. The result is very large temporary wound cavities pep- pered with holes from the frags. Unlike some hollowpoint bullets, heavy
clothes covering the ballistic gelatin had absolutely no effect whatsoever on the Black Ops OTF bullets. They performed like in bare gelatin. After the OTF bullet strikes soft tissue, there is no downrange threat of penetrating injury from these frags. They either won’t exit, or won’t exit with enough energy to cause injury. During testing with laminated glass, the Black Ops 40 S&W 105-grain OTF bullet produced a single hole in the glass, and then a large, 40-caliber bullet hole along with two or three frags through the witness
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