{"id":59,"date":"2015-09-29T07:28:48","date_gmt":"2015-09-29T07:28:48","guid":{"rendered":"http:\/\/crispinengineering.co.uk\/?page_id=59"},"modified":"2015-09-29T07:28:48","modified_gmt":"2015-09-29T07:28:48","slug":"bullet-comparator","status":"publish","type":"page","link":"https:\/\/crispinengineering.co.uk\/index.php\/bullet-comparator\/","title":{"rendered":"Bullet Comparator"},"content":{"rendered":"<p>The customer needed an insert for his bullet comparator to measure 30 calibre bullets. We used a piece of .308&#8243; barrel and using a throating reamer cut the 1&#8217;30&#8221; taper into it so it replicates the part of the barrel that the bullet sits in when it&#8217;s chambered.<\/p>\n<p><a href=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparator.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-60\" src=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparator-300x225.jpg\" alt=\"BulletComparator\" width=\"300\" height=\"225\" srcset=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparator-300x225.jpg 300w, https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparator-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparatorInsert.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-61\" src=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparatorInsert-252x300.jpg\" alt=\"BulletComparatorInsert\" width=\"252\" height=\"300\" srcset=\"https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparatorInsert-252x300.jpg 252w, https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparatorInsert-861x1024.jpg 861w, https:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparatorInsert.jpg 989w\" sizes=\"auto, (max-width: 252px) 100vw, 252px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The customer needed an insert for his bullet comparator to measure 30 calibre bullets. We used a piece of .308&#8243; barrel and using a throating reamer cut the 1&#8217;30&#8221; taper into it so it replicates the part of the barrel that the bullet sits in when it&#8217;s chambered.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-59","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bullet Comparator - Crispin Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/crispinengineering.co.uk\/index.php\/bullet-comparator\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bullet Comparator - Crispin Engineering\" \/>\n<meta property=\"og:description\" content=\"The customer needed an insert for his bullet comparator to measure 30 calibre bullets. We used a piece of .308&#8243; barrel and using a throating reamer cut the 1&#8217;30&#8221; taper into it so it replicates the part of the barrel that the bullet sits in when it&#8217;s chambered.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/crispinengineering.co.uk\/index.php\/bullet-comparator\/\" \/>\n<meta property=\"og:site_name\" content=\"Crispin Engineering\" \/>\n<meta property=\"og:image\" content=\"http:\/\/crispinengineering.co.uk\/wp-content\/uploads\/2015\/09\/BulletComparator-300x225.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/\",\"url\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/\",\"name\":\"Bullet Comparator - Crispin Engineering\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/crispinengineering.co.uk\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/BulletComparator-300x225.jpg\",\"datePublished\":\"2015-09-29T07:28:48+00:00\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/#primaryimage\",\"url\":\"https:\\\/\\\/crispinengineering.co.uk\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/BulletComparator.jpg\",\"contentUrl\":\"https:\\\/\\\/crispinengineering.co.uk\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/BulletComparator.jpg\",\"width\":3648,\"height\":2736},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/index.php\\\/bullet-comparator\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/crispinengineering.co.uk\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Bullet Comparator\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#website\",\"url\":\"http:\\\/\\\/crispinengineering.co.uk\\\/\",\"name\":\"Crispin Engineering\",\"description\":\"We make stuff\",\"publisher\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\\\/\\\/crispinengineering.co.uk\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#organization\",\"name\":\"Crispin Engineering\",\"url\":\"http:\\\/\\\/crispinengineering.co.uk\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/crispinengineering.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Crispin-Transparent600x400.png\",\"contentUrl\":\"https:\\\/\\\/crispinengineering.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Crispin-Transparent600x400.png\",\"width\":600,\"height\":400,\"caption\":\"Crispin Engineering\"},\"image\":{\"@id\":\"http:\\\/\\\/crispinengineering.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bullet Comparator - Crispin Engineering","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/crispinengineering.co.uk\/index.php\/bullet-comparator\/","og_locale":"en_GB","og_type":"article","og_title":"Bullet Comparator - Crispin Engineering","og_description":"The customer needed an insert for his bullet comparator to measure 30 calibre bullets. 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