{"id":4171,"date":"2023-04-16T08:39:29","date_gmt":"2023-04-16T08:39:29","guid":{"rendered":"https:\/\/tractoptics.com\/blog\/?p=4171"},"modified":"2026-05-21T11:36:27","modified_gmt":"2026-05-21T11:36:27","slug":"selecting-a-rifle-barrel-for-a-custom-build","status":"publish","type":"post","link":"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/","title":{"rendered":"Selecting a Rifle Barrel for a Custom Build"},"content":{"rendered":"<p style=\"text-align: justify\"><strong>Selecting a <a href=\"https:\/\/blog.tract-optics.co.za\/the-benefit-of-having-a-backup-rifle\/\">rifle<\/a> barrel for a <a href=\"https:\/\/blog.tract-optics.co.za\/building-a-custom-rifle\/\">custom<\/a> build is a critical step in building your ultimate rifle.<\/strong><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Shooters who are building a custom rifle are in for a real treat. While \u201coff-the-shelf\u201d makes and models have greatly diversified their offerings, mass-produced firearms will always lack the fine fit of a tailored <a href=\"https:\/\/blog.tract-optics.co.za\/tract-toric-30mm-1-8x24-lpvo-throw-lever-installation\/\">setup<\/a>. Bespoke <a href=\"https:\/\/blog.tract-optics.co.za\/defining-rifle-actions\/\">rifles<\/a> should offer several benefits over their store-bought counterparts, most notably in their appearance, fit, and function. And selecting the right rifle barrel for a custom build is the most important step to maximizing accuracy and performance.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">The options and combinations for barrel construction are nearly limitless. Shooters should first decide their intended use for a custom build. A custom <a href=\"https:\/\/blog.tractoptics.com\/binoculars-for-turkey-hunting\/\" title=\"Binoculars for Turkey Hunting\" data-wpil-monitor-id=\"707\" target=\"_blank\" rel=\"noopener\">hunting<\/a> rifle will likely look and act much differently than a custom long-range competition rifle.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Much like building a house from the ground up, the open architecture of building a rifle can also be overwhelming. A barrel is one of the rifle\u2019s most important components and should be carefully selected. This article should be a guide to help you start the process of selecting the right barrel for your <\/span><a href=\"https:\/\/tractoptics.com\/blog\/building-a-custom-rifle\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">custom rifle build<\/span><\/a><span style=\"font-weight: 400\">.<\/span><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\"><div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p><span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Construction_Material\" >Construction Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Barrel_Length\" >Barrel Length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Contour\" >Contour<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Twist_Rate\" >Twist Rate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Fluting\" >Fluting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.tract-optics.co.za\/selecting-a-rifle-barrel-for-a-custom-build\/#Threading_and_Muzzle_Devices\" >Threading and Muzzle Devices<\/a><\/li><\/ul><\/nav><\/div><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Construction_Material\"><\/span><b>Construction Material<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Most custom barrels are made from blued steel, stainless steel, or steel wrapped with carbon fiber. All three materials provide different pros and cons. Blued barrels are generally the least expensive but also the most sensitive to the elements.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">The black finish has been used for hundreds of years and gives off a very classic appearance that appeals to nostalgic shooters. Stainless steel is more resistant to weather and corrosion but is usually a pricier option.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Carbon fiber barrels are the most expensive. But they are significantly lighter and arguably the most accurate material due to better heat control and barrel harmonics.<\/span><\/p><figure id=\"attachment_4173\" aria-describedby=\"caption-attachment-4173\" style=\"width: 645px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/proofresearch.com\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"wp-image-4173\" src=\"https:\/\/blog.tractoptics.com\/wp-content\/uploads\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-1024x92.png\" alt=\"Selecting a Rifle Barrel for a Custom Build\" width=\"645\" height=\"58\" title=\"\" srcset=\"https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-1024x92.png 1024w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-300x27.png 300w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-768x69.png 768w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-1536x137.png 1536w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-600x54.png 600w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon-150x13.png 150w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/2022-Bolt-Action-Barrel-Blank-Carbon.png 1632w\" sizes=\"(max-width: 645px) 100vw, 645px\" \/><\/a><figcaption id=\"caption-attachment-4173\" class=\"wp-caption-text\">Selecting a Rifle Barrel for a Custom Build<\/figcaption><\/figure><p style=\"text-align: justify\"><a href=\"https:\/\/proofresearch.com\/\" target=\"_blank\" rel=\"noopener\">Carbon Fiber Proof Barrels<\/a> are some of the best in the industry &#8211; Claiming up to 64% lighter than traditional steel barrels of similar contour.<\/p><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Barrel_Length\"><\/span><b>Barrel Length<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">The length of a barrel affects two main <a href=\"https:\/\/blog.tractoptics.com\/shooting-22lr-rifle-in-a-whole-new-way\/\" title=\"Shooting a 22LR Rifle in a Whole New Way\" data-wpil-monitor-id=\"542\" target=\"_blank\" rel=\"noopener\">shooting<\/a> factors: accuracy and bullet velocity. As a barrel is lengthened, both are mostly improved. The accuracy improvements adjust on a bell curve, however, and eventually lead to less accurate shots from a longer barrel experiencing more \u201cwhip\u201d during a shot than a shorter, stiffer barrel.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Barrels should be long enough for a bullet to reach its maximum potential velocity and no more. In most cases, longer magnum cartridges \u2013 like the .300 Winchester Magnum \u2013 burn powder more slowly than shorter cartridges and therefore need a longer barrel for the muzzle gasses to properly expand and maximize power. Shorter cartridges are commonly able to reach maximum velocity through shorter barrels.<\/span><\/p><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Contour\"><\/span><b>Contour<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">A barrel\u2019s contour is its shape. Stiffer barrels are usually more accurate, especially as a barrel heats and cools, and meatier bull barrels offer more stiffness. Thick-walled barrels are considerably heavier, though, and are more appropriate for bench shooters looking for hairpin precision.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Sporting contours taper significantly from the barrel\u2019s throat and offer a lighter construction at the risk of slightly less accurate shots. In most cases, however, a hunter needs one shot to be on target rather than several shots in the smallest group possible. Because of this, heat control and absolute maximum accuracy are not as important as the handiness and agility that a lighter <a href=\"https:\/\/blog.tractoptics.com\/rifle-marksmanship-trigger-control-success\/\" title=\"Rifle Marksmanship : Trigger Control Equals Success\" data-wpil-monitor-id=\"1445\" target=\"_blank\" rel=\"noopener\">rifle<\/a> provides.<\/span><\/p><p style=\"text-align: justify\"><iframe src=\"https:\/\/www.youtube.com\/embed\/o8EuLyM99go\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Twist_Rate\"><\/span><b>Twist Rate<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Twist rate refers to the concentration of a barrel\u2019s rifling. A rifle with a lower twist rate will cause the projectile to spin more quickly than the same barrel with a higher twist rate. For instance, a barrel with a 1:7 twist will cause a bullet to fully rotate every seven inches, while a 1:10 twist will cause a bullet to fully rotate every 10 inches.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">The optimal spin is desired to produce the most accurate rounds, and a bullet\u2019s shape and speed dictate which twist is ideal. Shooters should consult with their selected barrel manufacturer to find out which twist rate is best for their desired bullet and cartridge construction.<\/span><\/p><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Fluting\"><\/span><b>Fluting<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Fluting is the collection of grooves cut into the outside of a barrel. In most cases significant material is removed through the process and greatly reduces barrel weight. The cut grooves also add surface area to the barrel and allow it to cool more quickly.\u00a0<\/span><\/p><figure id=\"attachment_4174\" aria-describedby=\"caption-attachment-4174\" style=\"width: 438px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.shawcustombarrels.com\/barrels\/barrel-fluting\/51\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-4174\" src=\"https:\/\/blog.tractoptics.com\/wp-content\/uploads\/2023\/04\/shaw.png\" alt=\"Selecting a Rifle Barrel for a Custom Build\" width=\"438\" height=\"289\" title=\"\" srcset=\"https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/shaw.png 795w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/shaw-300x198.png 300w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/shaw-768x507.png 768w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/shaw-454x300.png 454w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2023\/04\/shaw-150x99.png 150w\" sizes=\"(max-width: 438px) 100vw, 438px\" \/><\/a><figcaption id=\"caption-attachment-4174\" class=\"wp-caption-text\">Selecting a Rifle Barrel for a Custom Build<\/figcaption><\/figure><p style=\"text-align: justify\"><a href=\"https:\/\/www.shawcustombarrels.com\/\" target=\"_blank\" rel=\"noopener\">Shaw Custom Barrels<\/a> patented Helical fluting provides additional surface area for improved cooling, improved barrel harmonics, and helps to counteract rotational torque, giving the shooter greater shot consistency.<\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">However, removing material also means the barrel heats up faster than a thicker, solid-walled pipe. While a debate is ongoing relative to how fluting can positively and negatively affect accuracy, there\u2019s no doubt that it adds significant visual appeal to a rifle\u2019s build.<\/span><\/p><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Threading_and_Muzzle_Devices\"><\/span><b>Threading and Muzzle Devices<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><span style=\"font-weight: 400\">A barrel usually needs to be threaded to add a muzzle device. But some muzzle brakes are milled into the end of the barrel. In either case, a shooter needs to be prepared to select an option if they would like to add a brake or suppressor.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">Muzzle brakes significantly reduce recoil by redirecting gasses to the side of the muzzle rather than straight back down the barrel, but the redirecting of gasses also redirects noise towards the shooter and can blast gas on any <a href=\"https:\/\/blog.tractoptics.com\/all-about-hog-hunting\/\" title=\"All About Hog Hunting\" data-wpil-monitor-id=\"708\" target=\"_blank\" rel=\"noopener\">hunting<\/a> partner or spotter sitting besides the shooter.\u00a0<\/span><\/p><p style=\"text-align: justify\"><a href=\"https:\/\/tractoptics.com\/blog\/the-benefits-of-having-a-rifle-suppressor\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Suppressors<\/span><\/a><span style=\"font-weight: 400\"> conversely reduce noise but are heavy, bulky, and require an ATF background check that takes months to clear. In either case, shooters who are selecting a rifle barrel for a custom build should consider threading the end of the barrel so all options are open in the future.<\/span><\/p><p style=\"text-align: justify\"><span style=\"font-weight: 400\">While a <a href=\"https:\/\/blog.tractoptics.com\/big-bore-builds\/\" title=\"Big Bore Builds\" data-wpil-monitor-id=\"1379\" target=\"_blank\" rel=\"noopener\">custom rifle build<\/a> can seem daunting, educating yourself on a rifle\u2019s structure is the most important first step. With custom barrels, the options are infinite, but finding the right construction for your intended purpose is relatively easy once you learn some basics. Mastering the barrel is the most important step to finding your ultimate custom rifle.<\/span><\/p><figure id=\"attachment_4177\" aria-describedby=\"caption-attachment-4177\" style=\"width: 320px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/tractoptics.com\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"wp-image-4177 size-full\" title=\"TRACT Optics\" src=\"https:\/\/blog.tractoptics.com\/wp-content\/uploads\/2023\/04\/Tract-2023_320x50.gif\" alt=\"TRACT Optics\" width=\"320\" height=\"50\" \/><\/a><figcaption id=\"caption-attachment-4177\" class=\"wp-caption-text\"><a href=\"https:\/\/blog.tract-optics.co.za\/welcome-to-tract-optics\/\">TRACT Optics<\/a><\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>Selecting a Rifle Barrel for a Custom Build<\/p>\n","protected":false},"author":2,"featured_media":12083,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2255,2267],"tags":[2370,2577,2797,3032,3077,3189],"class_list":["post-4171","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-extra-topics","category-shooting-skills","tag-barrels","tag-custom-rifle","tag-hunting","tag-rifle-scope","tag-rifles","tag-shooting"],"_links":{"self":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/4171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/comments?post=4171"}],"version-history":[{"count":1,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/4171\/revisions"}],"predecessor-version":[{"id":11360,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/4171\/revisions\/11360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media\/12083"}],"wp:attachment":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media?parent=4171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/categories?post=4171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/tags?post=4171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}