{"id":3655,"date":"2021-02-23T15:36:41","date_gmt":"2021-02-23T15:36:41","guid":{"rendered":"https:\/\/www.ammoman.com\/blog\/?p=3655"},"modified":"2021-03-08T13:30:02","modified_gmt":"2021-03-08T13:30:02","slug":"choosing-the-right-ammo-hollow-point-vs-fmj","status":"publish","type":"post","link":"https:\/\/www.ammoman.com\/blog\/choosing-the-right-ammo-hollow-point-vs-fmj\/","title":{"rendered":"Choosing The Right Ammo: Hollow point vs. FMJ"},"content":{"rendered":"<h1><span style=\"font-weight: 400;\">Understanding Hollow Point vs FMJ Bullets<\/span><\/h1>\n<p><span style=\"font-weight: 400;\">Different guns are better suited to different tasks. It\u2019s rather hard to carry a full-sized rifle grocery shopping, and making a 300 yard shot with a defensive pistol is a bit of a challenge. It\u2019s that same way with ammunition. Different types of cartridges have different tasks too. Different types of bullets are designed to accomplish different tasks. Two of the most common types of bullets are the jacketed hollow point (JHP) rounds and full metal jacket (JHP) bullets. Let\u2019s get a better understanding of the differences between hollow point and FMJ bullets. We&#8217;ll see how each of them fit into your armed lifestyle.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Let\u2019s begin by defining some terms. Ammunition consists of four parts. There is a tendency to use \u201cbullet\u201d to describe a complete round of ammunition, when in reality \u201cbullet\u201d is just a part of one round of ammunition. The first part is the case, also known as the shell. That\u2019s the metal (or occasionally polymer) part that holds everything else together. At the bottom end of the shell casing is the primer. The gun&#8217;s firing pin strikes it and everything gets started. After the primer is struck, it ignites the powder (the third part of a round of ammo), which burns really quickly. This makes a lot of hot gasses that push the last part, the bullet, out of the barrel quickly.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">The Naming Of Parts<\/span><\/h3>\n<div id=\"attachment_3634\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.ammoman.com\/blog\/media\/before-1.jpg\" data-rel=\"lightbox-image-0\" data-magnific_type=\"image\" data-rl_title=\"\" data-rl_caption=\"\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3634\" class=\"wp-image-3634 size-large\" title=\"\" src=\"https:\/\/www.ammoman.com\/blog\/media\/before-1-1024x867.jpg\" alt=\"hollow point 9mm ammo vs full metal jacket ammo\" width=\"1024\" height=\"867\" srcset=\"https:\/\/www.ammoman.com\/blog\/media\/before-1-1024x867.jpg 1024w, https:\/\/www.ammoman.com\/blog\/media\/before-1-300x254.jpg 300w, https:\/\/www.ammoman.com\/blog\/media\/before-1-768x650.jpg 768w, https:\/\/www.ammoman.com\/blog\/media\/before-1-1536x1301.jpg 1536w, https:\/\/www.ammoman.com\/blog\/media\/before-1-610x517.jpg 610w, https:\/\/www.ammoman.com\/blog\/media\/before-1-1080x915.jpg 1080w, https:\/\/www.ammoman.com\/blog\/media\/before-1-627x531.jpg 627w, https:\/\/www.ammoman.com\/blog\/media\/before-1.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><p id=\"caption-attachment-3634\" class=\"wp-caption-text\">Hollow point (L) vs FMJ (R)<\/p><\/div>\n<p><span style=\"font-weight: 400;\">There are also names for each part of a bullet. Both FMJ and JHP bullets are \u201cjacketed.\u201d This means they have a thin layer of copper that surrounds the lead that\u2019s inside the bullet itself.<\/span><\/p>\n<p>The base (or shank) is the part of the bullet that is stuffed into the cartridge to make a complete round of ammunition. The nose is at the other end, and hits the target first. The shape of the nose usually determines if a bullet is a hollow point or FMJ round.<\/p>\n<p>So when we say \u201cbullet,\u201d what we mean is the part that actually gets shot out of a gun. It\u2019s also the part that hits the target, and that\u2019s where the differences with hollow point vs. fmj bullets really start to show up. Hollow point\/JHP bullets are purpose-built to slow down and release their energy when they hit something meaty, such as a hunter\u2019s prey or the person trying to kill you. They accomplish this task with their hollow point, which fills up and expands open when the bullet strikes something substantial. That expansion slows them down inside the target, which dumps all their energy into what they\u2019ve hit. Even a small, lower-powered round like .22 rifle has over 100 ft\/lbs of energy when fired, so whatever you hit is going to feel a thump.<\/p>\n<h2><span style=\"font-weight: 400;\">The Function of Hollow Point vs FMJ Rounds<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Full Metal Jacket (FMJ) rounds, on the other hand, are not meant to interact with the target in any meaningful way. Rather, their job is to punch a hole in whatever they hit and travel as far a distance as possible. FMJ bullets are easier to design and manufacture than JHP bullets, and as such, each round of FMJ ammo usually costs less per round than a round of JHP ammunition.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, just because they\u2019re not designed to slow down inside a target doesn\u2019t mean FMJ bullets are useless for self defense. You need to hit the vital areas to be certain of stopping your attacker. That means the bullet penetrates through parts of the human body that are designed to stop penetration (like bones\/muscle). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The FBI did an exhaustive study as to just how much penetration is needed to reach the important parts. Their tests determined that <\/span><a href=\"https:\/\/www.hornadyle.com\/resources\/fbi-test-protocol\"><span style=\"font-weight: 400;\">12 inches of penetration into ballistics gel<\/span><\/a> <span style=\"font-weight: 400;\">is the minimum requirement for an effective defensive round.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Different Bullets For Different Reasons<\/span><\/h3>\n<div id=\"attachment_3635\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3635\" class=\"wp-image-3635 size-large\" title=\"Hollow point vs fmj rounds when they hit the target\" src=\"https:\/\/www.ammoman.com\/blog\/media\/after-1-1024x756.jpg\" alt=\"Hollow point vs fmj rounds when they hit the target\" width=\"1024\" height=\"756\" srcset=\"https:\/\/www.ammoman.com\/blog\/media\/after-1-1024x756.jpg 1024w, https:\/\/www.ammoman.com\/blog\/media\/after-1-300x222.jpg 300w, https:\/\/www.ammoman.com\/blog\/media\/after-1-768x567.jpg 768w, https:\/\/www.ammoman.com\/blog\/media\/after-1-1536x1135.jpg 1536w, https:\/\/www.ammoman.com\/blog\/media\/after-1-610x451.jpg 610w, https:\/\/www.ammoman.com\/blog\/media\/after-1-1080x798.jpg 1080w, https:\/\/www.ammoman.com\/blog\/media\/after-1-627x463.jpg 627w, https:\/\/www.ammoman.com\/blog\/media\/after-1.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-3635\" class=\"wp-caption-text\">Ammo makers design hollow point rounds \u00a0to open up when they hit something soft. FMJ rounds tend to retain their shape.<\/p><\/div>\n<p><span style=\"font-weight: 400;\">This becomes a problem for lower-powered cartridges such as 22 Magnum. The difference in penetration of hollow point vs FMJ bullets means that a JHP round will open up too soon and not hit the vital parts of an attacker. If you\u2019re considering owning a gun like the Kel-Tec PMR-30 as a self-defense gun, consider using FMJ rounds as your defensive ammo of choice. This should penetrate more effectively than most JHP ammo. For other, more powerful calibers (9mm and up), hollow points are definitely the way to go.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To get a better understanding of the difference between hollow point vs FMJ bullets, we\u2019re going to use the same methods to test the impact (literally) of each type of bullet into a standardized testing medium. In our case, we\u2019ll use 10% synthetic ballistics gel. Clear Ballistics makes this gel specifically to serve as a yardstick for measuring the penetration of bullets into the human torso.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We\u2019ll be shooting two different 380 ACP rounds:\u00a0 Three rounds of <\/span><a href=\"https:\/\/www.ammoman.com\/380-acp-blazer-brass-95-grain-fmj-50-rounds\"><span style=\"font-weight: 400;\">Blazer Brass FMJ<\/span><\/a><span style=\"font-weight: 400;\">, and three rounds of <\/span><a href=\"https:\/\/www.ammoman.com\/380-auto-federal-hydra-shok-90-grain-jhp-20\"><span style=\"font-weight: 400;\">Federal Hydra Shok JHP<\/span><\/a><span style=\"font-weight: 400;\"> ammunition. We\u2019ll shoot the gel from 10 feet, the same distance the FBI uses. The gun we\u2019ll be using to do the test is a Sccy CPX-3.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Hollow Point vs FMJ Gel Test Results<\/span><\/h2>\n<div id=\"attachment_3633\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3633\" class=\"wp-image-3633 size-large\" title=\"380 FMJ gel test\" src=\"https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-1024x607.jpg\" alt=\"380 FMJ gel test\" width=\"1024\" height=\"607\" srcset=\"https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-1024x607.jpg 1024w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-300x178.jpg 300w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-768x455.jpg 768w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-1536x910.jpg 1536w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-610x361.jpg 610w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-1080x640.jpg 1080w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel-627x371.jpg 627w, https:\/\/www.ammoman.com\/blog\/media\/fmj_gel.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-3633\" class=\"wp-caption-text\">380 FMJ rounds have great penetration in gel. Maybe a little too great.<\/p><\/div>\n<p><span style=\"font-weight: 400;\"><strong>Blazer Brass 380 FMJ\u00a0<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">\u00a0Muzzle Velocity (avg): 957 fps<br \/>\n<\/span><span style=\"font-weight: 400;\">Muzzle Energy (avg): 193 ft\/lbs<br \/>\n<\/span><span style=\"font-weight: 400;\">Gel Penetration (avg): 16+ inches\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><strong>Speer Gold Dot 380 JHP<\/strong> <\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Muzzle Velocity (avg): 925 fps<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Muzzle Energy (avg): 171 ft\/lbs<br \/>\n<\/span><span style=\"font-weight: 400;\">Gel Penetration (avg): 11.75 inches<\/span><\/p>\n<div id=\"attachment_3631\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3631\" class=\"wp-image-3631 size-large\" title=\"380 Hollow point gel test\" src=\"https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-1024x570.jpg\" alt=\"380 Hollow point gel test\" width=\"1024\" height=\"570\" srcset=\"https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-1024x570.jpg 1024w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-300x167.jpg 300w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-768x427.jpg 768w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-1536x854.jpg 1536w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-610x339.jpg 610w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-1080x601.jpg 1080w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel-627x349.jpg 627w, https:\/\/www.ammoman.com\/blog\/media\/jhp_gel.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-3631\" class=\"wp-caption-text\">Hollow point rounds tend to expand and slow down fast when they hit a target<\/p><\/div>\n<p><span style=\"font-weight: 400;\">Each type of bullet performed as expected. The hollow point rounds hit the gel, and the cavity in the front of each bullet caused them to open up and slow down as they passed the ballistics gel. As a result, all the hollow point rounds dumped all their energy into the target, yet didn\u2019t overpenetrate and fly out the other end and hit something behind the target.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The FMJ rounds, on the other hand, zipped right through the ballistics gel as well as the gallon jug of water behind it that we were using as a backstop. This isn\u2019t a problem until you consider that the 11.75 inches of penetration from the 380 hollow points was slightly less than the FBI-recommended minimum of 12 inches of penetration. The FMJ rounds penetrated more (much more) than that. My solution to this problem when I carry a .380 ACP pistol is to use a hollow point round such as Hornady Critical Duty or Sig Sauer V-Crown. These are two rounds I know will penetrate better into gelatin than Hydra Shok does.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Two Different Bullets, Two Different Jobs<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Hollow point and FMJ rounds each have different jobs. Hollow points should be your \u201cgo to\u201d defensive round in all all but the smallest calibers. FMJ rounds, on the other hand, are ideal for practice and training. Shooters sometimes use them as a defensive round in less powerful guns. In the end, the question to the question of hollow point vs FMJ rounds is that both of them have a role to play in your safe and armed lifestyle.\u00a0 <\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding Hollow Point vs FMJ Bullets Different guns are better suited to different tasks. It\u2019s rather hard to carry a full-sized rifle grocery shopping, and making a 300 yard shot with a defensive pistol is a bit of a challenge. It\u2019s that same way with ammunition. Different types of cartridges have different tasks too. Different [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3630,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[14,4,3,13,11,10],"tags":[],"class_list":["post-3655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-concealed-carry","category-guns-101","category-intro-to-guns","category-pistol-shooting-tips","category-practice","category-training","et-has-post-format-content","et_post_format-et-post-format-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Choosing The Right Ammo: Hollow point vs. FMJ - AmmoMan School of Guns Blog<\/title>\n<meta name=\"description\" content=\"Choosing between hollow point vs fmj bullets means understanding the job each of them does as they leave your gun and impact the target\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ammoman.com\/blog\/choosing-the-right-ammo-hollow-point-vs-fmj\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Choosing The Right Ammo: Hollow point vs. FMJ - 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