{"id":538,"date":"2025-06-16T15:16:48","date_gmt":"2025-06-16T15:16:48","guid":{"rendered":"https:\/\/www.blackcollarmunitions.com\/?post_type=product&#038;p=538"},"modified":"2026-04-22T19:32:18","modified_gmt":"2026-04-22T19:32:18","slug":"308-winchester-subsonic","status":"publish","type":"product","link":"https:\/\/www.blackcollarmunitions.com\/?product=308-winchester-subsonic","title":{"rendered":"308 Winchester Subsonic"},"content":{"rendered":"<p>Subsonic 308 Winchester ammo for bolt-action firearms.<\/p>\n<p>Load offerings:<\/p>\n<p><strong>220 gr bulk:<\/strong><\/p>\n<ul>\n<li><strong>TEST WITHOUT A SUPPRESSOR FIRST<\/strong> to ensure projectiles are fully stable through your rifle. This means bullets are leaving ROUND holes in your target. We tested this ammo through four different, 1:10 twist 308 Win rifles from different brands and all completely stabilized these projectiles out to at least 100 yards (testing at longer ranges wasn&#8217;t done). It&#8217;s fair to say that 1:7 and 1:8 would be ideal twist rates, 1:10 has proven fully sufficient in our testing, and if your rifle has a slower twist rate than 1:10 we&#8217;d advise firing at least 10 rounds into a paper\/cardboard target at 50-100 yards to ensure all bullets remain stable before attaching a suppressor.<\/li>\n<li>Fully copper plated, lead core projectiles<\/li>\n<li>Loaded to approximately 1,050 FPS<\/li>\n<li>Bulk packaged in 100-round bags<\/li>\n<li>Loaded in Lake City brass with U.S. commercial spec primers (i.e. not foreign or NATO-spec hard primers)<\/li>\n<li>We&#8217;ve had good velocity consistency from this insanely quiet, subsonic 308 Win ammo bulk ammo. <strong>The powder we use is unlikely to generate enough gas\/pressure at the gas block to cycle a semi-auto firearm.<\/strong> With plated, round nose projectiles we suggest using this ammo for practice and fun plinking on the range, for training, or for high-volume pest eradication.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>From bulk loads for training\/plinking\/pest eradication to premium hunting\/tactical loads, you&#8217;ll find your subsonic 308 WIN ammo here!<\/p>\n<p><strong>We are using a gunpowder that makes this ammo\u00a0<em>insanely <\/em>quiet when suppressed.<\/strong> However, it is highly unlikely to cycle a semi-auto firearm. This ammo is intended for bolt-action, lever-action, single-shot, and other manual action firearms.<\/p>\n","protected":false},"featured_media":529,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[53,54],"product_tag":[36,38,37,58,57,56,39,59],"class_list":{"0":"post-538","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-308-winchester","7":"product_cat-subsonic-308-winchester","8":"product_tag-36","9":"product_tag-220-grain","10":"product_tag-220gr","11":"product_tag-308-subsonic","12":"product_tag-308-win","13":"product_tag-308-winchester","14":"product_tag-subsonic","15":"product_tag-subsonic-308","16":"product_shipping_class-loaded-ammo","18":"first","19":"instock","20":"taxable","21":"shipping-taxable","22":"purchasable","23":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=\/wp\/v2\/product\/538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=538"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=\/wp\/v2\/media\/529"}],"wp:attachment":[{"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=538"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=538"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=538"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.blackcollarmunitions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}