When choosing a home defense<\/a> handgun, rifle, or shotgun, the gauge, caliber, and load are important considerations. If you are in a crowded area, this is important.\u00a0If you reside in a rural area or the home is isolated, bullet penetration of building material doesn\u2019t mean as much. Or does it? There may be family members in other parts of the home, and the shots cannot be called back once they are sent out.<\/p>\n The primary goal of a personal defense load is to penetrate the adversary\u2019s body, do damage to vital organs, and cause a shutdown of the pressurized system. Only blood loss will cause this shutdown. The responsibility of the home defender is to strike the target.<\/p>\n Firing when you do not have a reasonable expectation of hitting the target<\/a> isn\u2019t a responsible action. Being human, you may miss, and you should know what to expect when a bullet connects with common building materials.<\/p>\n There is an interest expressed by defensive shooters in the use of cover, and I felt I should take that track as well in my testing. What types of building material will give the homeowner cover if they are under fire? After all, bullets go both ways.<\/p>\n Hardening a home against gunfire is a daunting proposition. If you elect to pour concrete between the walls, be certain the foundation will hold the weight. Since abandoned homes in a safe area that the owner is willing to allow me to shoot to pieces are rare, I constructed simulated walls and fabricated test objects.<\/p>\n Next, I fired a few hundred rounds of ammunition<\/a> and destroyed a truckload of structures. In the end, I discovered loads that are very attractive choices for home defense.<\/p>\n You cannot sacrifice bullet penetration by choosing loads that blow up on heavy leather jackets or fail to penetrate to the vitals, but neither do you wish to use a magnum hunting load in your\u00a0handgun<\/a>. The primary focus was on the handgun, as the handgun is always with us, but I also studied rifle<\/a> and shotgun<\/a> performance.<\/p>\n The problem of overpenetration in the home or apartment has been discussed many times. The fear of a bullet carrying far past the area of a gun battle is real. Wounds received by innocent persons in the wrong place at the wrong time are not uncommon. However, most of these occur in the open or on the street and are a result of missed shots rather than overpenetration. The great majority is the result of actions by our protein-fed, ex-con criminal class rather than honest citizens. Incidents involving homeowners firing through walls or a bullet exiting the home are less common. The majority of armed citizens are mature, conscientious individuals. I looked at the whole picture and tested ammunition from several angles.<\/p>\n Homes differ in construction, and at best, a general understanding of home penetration parameters was gained. Responsibility for every round fired is a concern and so is safety from a bad guy\u2019s bullet.<\/p>\n The first solution to the danger of an overpenetrating bullet exiting a home is to hit what you are shooting at, as I keep repeating. Carefully place a hollowpoint bullet into the assailant to let it expand properly and there will be no overpenetration problem.<\/p>\n Know the distance between one occupied structure and the other. Since we usually fire at an angle slightly up or down and seldom perpendicular to the target, the chances are the bullet will come to rest in something before it reaches an occupied home. A studio apartment with thin walls is another matter.<\/p>\n Hopefully, the burglar will present himself to your view and enfilade fire will get his attention. If he is in defilade, however, and under cover, you may need the ability to penetrate cover, rather than limiting bullet penetration.<\/p>\n There have been ridiculous cinema depictions of felons using a chair or mattress for cover. Bullets zip through these constructs, but some furniture may be heavy enough to turn a bullet. Will you be engaging in wall stitching in the home? Are there bullets that expand well in a body and stop short in home material?<\/p>\n Many high-velocity hollowpoint bullets<\/a> will expand in the body, true, but when they hit the wall the bullet nose plugs and they penetrate like a full-metal-jacket bullet. I noted that every test program in the popular press was inconsistent, with every author having a different idea, including some of the work I have done \u2014 after all, I learn things as I go along.<\/p>\n One of the considerations never mentioned in the popular press is the existence of firewalls between walls in apartment complexes. (Older buildings may not have them, but let\u2019s hope you live in a dwelling with firewalls.)<\/p>\n Stairwells and common hallways are an important consideration for the defensive handgunner. Another consideration is the difference between high-speed, light bullets and heavy, low-speed bullets. <\/p>\n Drag is a slowing force that seems to work more quickly on fast-moving, light bullets. Heavy bullets, even when moving slower than light bullets, tend to penetrate more, as is the case with the 147-grain, 1,000-feet-per-second 9mm Luger<\/a> versus the 115-grain, 1,200 fps 9mm and the 230-grain, 850 fps .45 ACP<\/a> versus the 185-grain, 1,100 fps .45.<\/p>\n I tested a representative sample of handgun rounds<\/a> against materials including pine board, drywall, cinderblock, and brick and added whatever I could come up with. The information obtained is interesting.<\/p>\n Common sense tells us that a loading by one maker or the other will probably perform similarly to the test load in bullet penetration if not in expansion, such as 115 grains at 1,200 fps in 9mm. Since the nose closes up and the bullet penetrates, a presumption is often made that only velocity and weight really matter, not bullet design. The same goes for 9mm full metal jacket or .45 ACP hardball, with one brand similar to the other.<\/p>\n This is actually true when it comes to FMJ loads, but not true with JHP loads. A wide-mouth hollow-point such as the 115-grain JHP used in Buffalo Bore\u2019s +P 9mm load breaks up rather quickly when fired against a cinder block and doesn\u2019t penetrate as much in wood as the slightly different Buffalo Bore +P+ load. The +P+ load uses a bonded design. The bullet stays together, as is the intent.<\/p>\n With the development in bullet technology during the past decade or so seeming to focus on bonded-core bullets, we need to carefully appraise our choices. Do we really need a bullet with high penetration against felons behind cover? Are the felons likely to be bundled in heavy clothing?<\/p>\n Bullets with less gelatin penetration are less offensive in home penetration. I stand by the need for greater bullet penetration in defense loads \u2014 at least on the level of 10 to 12 inches in water or gelatin \u2014 but it is clear that bonded bullets are designed for penetration of sheetmetal and window glass and perform as designed. Whether this is desirable is up to the homeowner.<\/p>\n In this test, the exactness of what we accomplished is respectable, but the great, broad, general conclusions of the test are also important. Judging by my experience in gelatin and water testing, loads that penetrate 12 inches of gelatin or a similar amount of water will not have sufficient energy to be dangerous and penetrate wall material once they penetrate a felon\u2019s body \u2014 after all, they should be expanded. <\/p>\n The real difference in safety is hitting the target. Never use round-nose lead or full-metal-jacketed bullets for home defense. While the .45 ACP 230-grain FMJ is an effective anti-personnel load, a JHP bullet is more effective. I did not test ricochet, for safety\u2019s sake, and neither should you. But among the few scares in the program was when RNL bullets bounced a bit when fired into hardwood. Even the .45 ACP, let alone the .38 RNL, will ricochet off a hard gradient.<\/p>\n At one time, pine boards were the testing material for handgun bullets. After all, with RNL or FP lead bullets the FMJ expansion wasn\u2019t a concern but power and bullet penetration were. Around 1900 or so, pine board testing was commonly used by ammunition companies to illustrate the effectiveness of a handgun loading. Today, we might test pine boards in order to understand wall stud vulnerability to bullets.<\/p>\n However, also understand that the studs in a wall will be facing rather than lengthwise, but just the same, this test is valid depending upon the bullet angle. For our test purposes, the pine boards were set up an inch apart to allow parts of the boards to be separated from the bullet as it flew through the boards.<\/p>\n All boards are not the same, and a quarter-sawed board will be denser. A quarter-sawn board is quartered lengthwise, and there are wedges at right angles to the center of the original board. So \u2014 different boards, different results.<\/p>\n Another unscientific but interesting test of hardened four-inch-thick boards was conducted. In this case, the .45 ACP loads \u2014 mostly 230-grain ball \u2014 not only fully penetrated, but it was also obvious that they were pushing a large wound cavity. There was actually a recognizable lengthening of the cavity as the .45 ACP bullet pushed through the board.<\/p>\n Bricks are found in a single layer attached to the outside wall of a frame building. Next are wall studs, plywood, and insulation. I shot bricks stacked in groups of four or more. In a true home environment, the shot is coming from the inside out in the case of a missed shot and would hit the wallboard first.<\/p>\n In a drive-by, bricks are hit first. When bricks are in sections, mortar holds them together and the support of the structure keeps them resilient. In firing, a pockmark was seen on the bricks and nothing more with the calibers below .38 Special<\/a>.<\/p>\n Beginning with the .38, damage began to be evident. The 9mm and .45 ACP bullets damaged the bricks but hardly enough to go through. After two to four shots, the bricks were cracked.<\/p>\n The .357 Magnum revolver<\/a> and the .223 Remington rifle<\/a> were very similar, bringing into focus the often-quoted remarks of early users of the Magnum: \u201cIt is like having a rifle on the hip.\u201d The .357 and the .223 each took a large chunk out of the brick and often broke it with a single shot. We found that one to two rounds in the same spot often broke up the brick and crumbled it.<\/p>\n In the case of cinder blocks, the .45 ACP JHP just made a pockmark, and part of the bullet penetrated on the first shot. The fast-stepping 9mm was much the same. The .357 Magnum 110-grain loads did no more.<\/p>\n The 1,400-fps .357 Magnum struck the block three or four times without great effect. The 158-grain JHP .357 Magnum<\/a> load made a large cavity in the block with the first shot and an opening into the hollow between the two sides of the block with the second shot, sometimes with the first shot. The third shot with the Magnum shattered the cinder block.<\/p>\n A slow-moving 158-grain .38 Special SWC at 850 fps did more damage than the 110-grain .357 Magnum. The 230-grain FMJ .45 broke up the blocks with very few shots.<\/p>\n Moving to the 12-gauge shotgun, double-ought buckshot produced spalls (pockmarks) without bullet penetration and bounced like mad in some cases. We took at least a 50-foot setback when testing and were glad we did when this unexpected event occurred with buckshot.<\/p>\n The buckshot balls flattened on cinderblocks and bounced back 10 to 12 feet. This would not be the load of choice in a crowded environment with a cinderblock wall. You could easily shoot a felon and yourself with one shot. Shotgun slugs demolished cinderblocks with a single shot.<\/p>\n The next step was wallboard penetration. It should be no surprise that bullets and buckshot go through wallboard \u2014 it\u2019s just paper and clay. As one of the raters noted, there is no magic bullet that will not penetrate in the home and relieve you of the responsibility of aiming straight and not engaging in spray-and-pray. Every shot must be carefully aimed.<\/p>\n Just the same, the results are interesting, and it is obvious that some cartridges are better than others. We built a construct of wallboard with a total of 12 boards. They were not complete walls, but in some cases simply 12\u00d712 sections nailed to boards \u2014 12 wallboards, six walls. Then we had to rebuild them several times. This comes out to six walls with one board in and one board out. The results are interesting.<\/p>\n During our .223 ammunition<\/a> tests, we found that many .223 rifle rounds are best suited for varmints. They stand an excellent chance of breaking up on light cover, a belt buckle, or heavy clothing. So, we are beginning with a round that needs a bullet of 50 grains or more to be effective in personal defense.<\/a><\/p>\n While the .223 may be very effective in home defense, the question of muzzle blast is harrowing. The blast (the .357 Magnum is another offensive caliber) is potentially deafening, with a permanent effect on our hearing. If you have the carbine and your Wolf Ears at home ready, you are way ahead of the game, but few will do this. The .223 loads bear special attention.<\/p>\n This load<\/a> began to fragment in the first wall of the wallboard testing. When the second section of the first wall was penetrated, the bullet was obviously fragmenting.<\/p>\n Some pieces made the second wall, but none fully penetrated the fourth board. Most of the 10 rounds fired stopped in the third board. This is a good, safe bullet for interior use, but it may not have sufficient bullet penetration for defense.<\/p>\n This load surprised us. We were expecting more, but it penetrated the third wall \u2014 six sheets \u2014 and fell across the next wall in fragments. That is still three walls but less penetration than some of the pistol rounds.<\/p>\n This is a highly recommended service load. This load ran right through all 12 sections. Since the 55-grain JSP load was a good personal defense load and penetrates less in wallboard, it would be the recommended loading.<\/p>\nHome Defense Goals<\/h2>\n
![\"Drywall](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-7.jpg?resize=640%2C825&ssl=1\")
<\/a>![\".223](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-10.jpg?resize=640%2C512&ssl=1\")
<\/a>![\"Fiocchi](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-6.jpg?resize=640%2C325&ssl=1\")
<\/a>What Ammo Is Best for Home Defense?<\/h2>\n
![\"Hardened](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-11.jpg?resize=640%2C303&ssl=1\")
<\/a>![\"Bob](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-2.jpg?resize=640%2C480&ssl=1\")
<\/a>![\"hardened](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-4.jpg?resize=640%2C964&ssl=1\")
<\/a>Our Results<\/h2>\n
Brick Constructs<\/h2>\n
![\"small](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-8.jpg?resize=640%2C648&ssl=1\")
<\/a>![\"Man](\"https:\/\/i0.wp.com\/blog.cheaperthandirt.com\/wp-content\/uploads\/2019\/05\/Bullet-Penetration-1.jpg?resize=640%2C662&ssl=1\")
<\/a>Some Individual Loads<\/h2>\n
.223 rifle<\/h3>\n
Fiocchi 40-grain V-Max<\/h4>\n
Black Hills 55-grain JSP<\/h4>\n
Black Hills 60-grain JSP<\/h4>\n
12-Gauge Shotgun<\/h3>\n