300blk in 5.56 barrel catastrophic failure https://greyhive.com/videos/watch/6c937c3c-56df-423f-8029-6a4807137b0e Firearms safety rules should always be followed. Ensure that all new and old shooters follow these rules WITH THAT BEING SAID, 300BLK CAN FIT INTO A 5.56 BARREL AND IT IS DANGEROUS https://shortshot.blog/ Sat, 19 Sep 2026 04:25:15 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://greyhive.com 300blk in 5.56 barrel catastrophic failure https://greyhive.com/lazy-static/avatars/5746210d-885d-44b2-9be0-92bf1e4d34df.webp https://greyhive.com/videos/watch/6c937c3c-56df-423f-8029-6a4807137b0e All rights reserved, unless otherwise specified in the terms specified at https://greyhive.com/about and potential licenses granted by each content's rightholder.