{"product_id":"barnes-bullets-tsx-50-bmg-510-647gr-tsx-boat-tail-20-box","title":"Barnes Bullets TSX 50 BMG .510 647gr TSX Boat Tail 20\/Box","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eBarnes Bullets TSX (Triple-Shock X) Boat Tail\u003c\/span\u003e\u003c\/strong\u003e is a premium lead-free, all-copper hunting bullet engineered for handloaders assembling their own \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e50 BMG\u003c\/span\u003e\u003c\/strong\u003e rifle ammunition. Machined as a monolithic \u003cstrong\u003e.510\"\u003c\/strong\u003e diameter projectile weighing \u003cstrong\u003e647 gr\u003c\/strong\u003e, the TSX BT is built around controlled expansion, maximum weight retention, and a no-fragmentation design that Barnes advertises as delivering approximately \u003cstrong\u003e28% deeper penetration\u003c\/strong\u003e than comparable lead-core bullets.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEach bullet features a \u003cstrong\u003ehollow-point\u003c\/strong\u003e nose that initiates expansion into four razor-sharp cutting petals on impact, a \u003cstrong\u003ecannelure\u003c\/strong\u003e for positive case-mouth seating, and a tapered \u003cstrong\u003eboat-tail\u003c\/strong\u003e base for improved ballistic efficiency. Barnes publishes a \u003cstrong\u003eballistic coefficient of .572\u003c\/strong\u003e and a \u003cstrong\u003esectional density of .355\u003c\/strong\u003e for this loading, with the entire projectile constructed from \u003cstrong\u003ecopper solid\u003c\/strong\u003e - no lead core and no separate jacket. The TSX Boat Tail is recommended for \u003cstrong\u003ehunting\u003c\/strong\u003e use in \u003cstrong\u003erifle\u003c\/strong\u003e applications and is packaged as \u003cstrong\u003e20 bullets per box\u003c\/strong\u003e of new production reloading components.\u003c\/span\u003e\u003c\/p\u003e","brand":"Barnes Bullets","offers":[{"title":"Default Title","offer_id":54992975429954,"sku":"53370","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_54ea6d14-a8de-4bdf-a569-3fd2d8ac8031.png?v=1784252771","url":"https:\/\/centerfiresystems.com\/products\/barnes-bullets-tsx-50-bmg-510-647gr-tsx-boat-tail-20-box","provider":"Centerfire Systems","version":"1.0","type":"link"}