July 26, 2013 The .338 Lapua Magnum cartridge was developed for military long-range sniper rifles… And watermelon destruction! Share this gun video:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)