Hornady launched a new cartridge yesterday on their Facebook page. Only it was buried in Photos. Which is kinda cool, given the stealth motif surrounding the new 300 Whisper round. In case you’re wondering (so to speak), the 300 Whisper is based on the 221 Remington case necked up to .308. The gun Whisperers are designed for firearms chambered in 300 AAC Blackout. The cartridge’s available in both subsonic and supersonic variants and it can be used with or without a can. (Yes we can!) So who needs this stuff? As Hornady’s sole commentator commented, “I’m tired of paying over $40 for a box of .300 Whisper factory ammo. Thanks you Hornady!” Shhhh.