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ENTER TO WIN > Free Gun Friday for your chance to WIN the SIG Sauer P320 AXG Legion and Black Hills HoneyBadger Ammo

Piercing Ammo: 32 Pistol, Shotgun And Rifle Rounds for Hard Targets

Tactical-Life by Tactical-Life
January 4, 2015
in 12 Gauge, Ammo, Gear
0
.308 Hornady Superformance GMX bullet

Cinder blocks grind bullets up. A 150-grain, .308 Hornady Superformance GMX bullet never touched the water jug behind the block.

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Gunfights don’t always take place in the open. When an assailant attacks from behind light or medium cover, lightweight hollow points designed for rapid expansion and limited tissue penetration may break up before they reach their target. Therefore, the ability to continue fighting when an assailant shoots from cover is an important consideration when selecting ammunition.

Cover is any barrier material that will significantly slow, deflect, fragment or stop a bullet before it reaches its intended target. Cover doesn’t have to totally stop a bullet to be effective. It just has to slow or deflect the round sufficiently to prevent it from neutralizing its intended target. There are many kinds of cover. Some, like refrigerators and mailboxes, offer both concealment and protection from bullets. Others, like car windshields or bullet-resistant glass, don’t offer concealment, yet they often deflect and fragment bullets. Complex cover is made of several components, each of which places different stresses on a projectile. Refrigerators and automobile windshield safety glass are good examples of complex cover made of layers of different materials. Complex cover can also be granular in structure. The small, hard granules of cinder blocks frequently grind bullets into small pieces before they reach their targets.

Some calibers and bullet types are more effective against cover than others. Generally, larger-caliber projectiles that have high sectional densities are better at defeating cover, especially if they are of bonded or monolithic construction. In addition, bullets made of harder metals than pure soft lead also do a better job of penetrating cover. These metals include lead/tin alloys, copper, bronze and steel. Some examples of cover-defeating bullets include 12 gauge (1) DDupleks steel Monolit 32 slugs and (2) 12 gauge Brenneke hard-cast slugs for shotguns, and handgun loads with bonded or “X” bullets. Cover-defeating rifle loads have bullets with steel jackets or penetrators, or they can have X-type or bonded bullets. Just remember, no bullet will defeat every type of cover.

On the other hand, cover-defeating bullets aren’t good for all situations. Almost all projectiles fired from guns will penetrate light materials like drywall. Therefore, using large-caliber, high-sectional-density and/or hardened projectiles for urban self-defense runs the risk of collateral damage to both bystanders and property due to overpenetration and ricochet. Since most of us live in cities, this creates a real dilemma when it comes to choosing ammo. How can one simultaneously limit collateral damage and still have at least limited defense against assailants who shoot from light or medium cover? There are two solutions. Neither is perfect, but both are better than making an uninformed choice.

Side-window glass deflects bullets. A 9mm FMJ bullet went high after penetrating a tempered piece of side-window glass on the way to the target.
Brenneke lead slug
The 12 gauge, hardened original Brenneke lead slug (left) and Barnes “X” shotgun slug (right) both penetrate a broad variety of barriers.
9mm FMJ bullet
Side-window glass deflects bullets. A 9mm FMJ bullet went high after penetrating a tempered piece of side-window glass on the way to the target.

Ballistic Balance

CorBon DPX load
Windshields offer little cover. Two 115-grain, 9mm +P CorBon DPX loads cut clean holes through this windshield and hit the target in the driver’s seat.
Black Hills’ 50-grain, 5.56mm Barnes TSX load uses an all-copper hollow point that expands in tissue and still penetrates common barriers very well.
Wolf .223 FMJ bullet
Car doors offer little protection from bullets. A 12 gauge slug, a 55-grain Wolf .223 FMJ bullet and a 123-grain Wolf 7.62x39mm FMJ bullet penetrated this door.

The first solution is to use a single load that offers terminal ballistic balance. The strong point of this strategy is that you don’t have to manage two different loads in the field. The weak point is that no one load does everything well. Loads with terminal ballistic balance have bullets that rapidly expand and limit the risk of a through-and-through shot when fired into tissue, yet their projectiles still hold together well enough to penetrate most light to medium cover.

Handgun loads offering terminal ballistic balance generally include ammo topped with expanding bullets of low to medium sectional densities. Examples include the light-for-caliber bullets loaded in the following types of ammunition: (3) Speer Gold Dot,  (4) CorBon DPX, (5) Barnes TAC-X, (6) Federal HST,  (7) Federal Tactical Bonded, (8) Hornady Critical Defense, (9) Winchester PDX and (10) Remington Ultimate Defense.

The situation is quite different with shotguns and centerfire rifles. It’s difficult to achieve terminal ballistic balance with ammunition for long guns because most of their cartridges generate a great deal of kinetic energy. Rifle bullets and shotgun projectiles designed for controlled tissue penetration will often fragment and fail to penetrate medium cover like automobile safety glass. This is especially true of the more powerful medium- and large-bore rifles and shotguns. So, with rifles and shotguns and some big-bore magnum handguns, a different solution often needs to be found.

Most wooden housing materials offer little cover. A single 115-grain, 9mm Hornady Critical Defense bullet fired from a SCCY pistol penetrated 2 inches of wood and pressed wood before penetrating this water jug.
Federal 55-grain bullet
Federal’s 55-grain, .223 Fusion load expands and still penetrates deeply in tissue. It also penetrates many types of barriers.
Federal’s 55-grain, .223 Fusion load expands and still penetrates deeply in tissue. It also penetrates many types of barriers.

.308 VEPR
The Author used this .308 VEPR, Hornady Superformance ammo and an MTM K-Zone shooting rest to test a variety of barriers for penetration.

Using Two Loads

Shooting while driving doesn’t work. All of the driver’s 9mm FMJs missed when fired through the windshield, while only six of thirty .223 rounds hit their mark.
.357 Mag DPX load
The 125-grain, .357 Mag DPX load (top) penetrates light to medium barriers well while the 110-grain, .357 Mag Winchester JHP (bottom) offers controlled tissue penetration. They would be a reasonable choice when using two loads for urban self-defense in a revolver.
Round-nosed lead bullets like this 98-grain, .32 S&W Long load penetrate deeply in tissue and often fail to penetrate barriers. They’re good for target practice, but more modern JHP loads work better for self-defense.

The other strategy for dealing with assailants who shoot from cover is to use two loads, one with controlled tissue penetration to limit collateral damage and one that defeats barriers. The strong point of this strategy is that you can tailor your ammunition to the types of threat you anticipate. The weak point is that you’d better be right about anticipating the threat, because if you have low-penetration ammo in the gun and an assailant takes cover, it’s going to take precious time to switch ammo. In addition, the gun must be sighted with both loads to assure similar points of impact.

Handgun loads that offer limited penetration are often topped with low-sectional-density jacketed hollow points of cup and core construction like (11) Winchester’s Silvertips, some of (12) Remington’s semi-jacketed hollow points, many of (13) Federal’s JHPs and most of (14) CorBon’s JHPs. Some of the newer fragmenting monolithic bullets, such as those used in (15) Liberty Civil Defense ammunition, also offer highly controlled penetration. In addition, pre-fragmented bullets ((16) Glaser Safety Slugs) and compressed metal bullets ((17) Sinterfire hollow points) limit the threat to bystanders from a shoot-through.

When it comes to choosing a second handgun load, there are a number that do a good job of penetrating light and medium cover. These include loads with solid-copper “X” bullets, (18) Hornady Critical Duty Flex Tip bullets and heavy-for-caliber versions of the (3) Speer Gold Dot, (6) Federal HST, (7) Federal Tactical Bonded, (9) Winchester PDX and (19) Remington Golden Saber.

Monolithic rifle bullets easily penetrate sheet steel. Here a Hornady 150-grain, .308 Superformance GMX sliced through auto body steel and completely destroyed a 3-gallon plastic water jug.
Hornady .308 Superformance GMX
Monolithic rifle bullets easily penetrate sheet steel. Here a Hornady 150-grain, .308 Superformance GMX sliced through auto body steel and completely destroyed a 3-gallon plastic water jug.
.308 Hornady Superformance GMX bullet second
Cinder blocks grind bullets up. A 150-grain, .308 Hornady Superformance GMX bullet never touched the water jug behind the block.

Winchester’s 185-grain, .45 ACP Silvertip expands rapidly. It is a reasonable choice for 1911 users who need controlled penetration for urban self-defense.
Shooting through car windows is rarely accurate. This target was shot through the windshield of a slowly moving car with a 5.56mm NATO AR at distances of 5 to 15 yards. Only six of the 30 shots struck the target.
Winchester 55-grain .223 VarmintX
Winchester’s 55-grain, .223 VarmintX load offers controlled penetration for urban self-defense.

Shotgun loads offering reduced tissue penetration contain shot ranging from #2 birdshot to #1 buckshot. They also include (20) Winchester’s 20 and (21) 12 gauge PDX segmented slugs and (22) Winchester’s .410 PDX shells loaded with a combination of lead disks and birdshot.

Most shotgun slugs offer moderate to high penetration against a broad variety of cover. The harder the slug, the deeper it penetrates. Those at the high end of penetration include original Brennekes, bonded expanding slugs and pure-copper expanding slugs.

Rifle loads offering reduced risk of penetrating through the target generally contain low-sectional-density bullets designed to rapidly expand or tumble. Both types of bullets fragment when they impact tissue and rarely exit the target intact, if at all. Examples include many spitzer-type FMJ bullets that tumble and fragment and most .224 to .308 caliber “varmint” bullets loaded by most American ammunition manufacturers.

Cover-defeating rifle loads generally have high-sectional-density bullets with the one or more of the following characteristics: monolithic hardened-metal construction, bonded cores, steel jackets and/or steel penetrators. Ammunition that meets these requirements would include loads with (23) Barnes “X” bullets from CorBon, (24) Federal Black Hills and  (25) Barnes as well as loads using Nosler’s E-Tip or (26) Hornady’s GMX bullets. It would also include ammunition with bonded bullets like (27) Nosler’s AccuBond, (28) Hornady’s Inter-Bond, (29) Remington ammunition with bonded bullets and (30) Federal’s Tactical, (31) Trophy Bonded Tip and (32) Fusion bullets. A variety of military loads with steel jackets or steel penetrators would also be included.

There are no guarantees that expanding bullets will always expand and penetrating bullets will always penetrate. Even so, selecting ammunition according to a strategy that weighs the need to limit collateral damage against the need to defeat cover can help stack the odds in your favor.

Monolithic rifle bullets easily penetrate sheet steel. Here a Hornady 150-grain, .308 Superformance GMX sliced through auto body steel and completely destroyed a 3-gallon plastic water jug.
Liberty Civil Defense .380 load
Liberty’s fragmenting Civil Defense .380 load delivers 200-plus foot-pounds of energy at the muzzle, and it’s a good choice for urban self-defense, where penetration must be controlled to avoid collateral damage.
CorBon Pow’RBall
CorBon’s 135-grain, .40 S&W controlled-penetration Pow’RBall and Speer’s barrier-resistant 180-grain, .40 S&W Gold Dot can serve as a two-load solution for urban self-defense.

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