Sporting Arms and Ammunition Manufacturers' Institute -SAAMI created this video for fire departments nationwide in order to help firefighters better address the realities of fires in which sporting ammunition is present.
Understand the main focus on this study was ammunition outside of a firearm.
This is a very interesting video, a bit long, but well worth the view. It was hard to watch over 400 thousand rounds be subjected to destructive testing. The conclusive evidence they gained from this testing should put to rest many urban legends which imply's a bullet can achieve high velocity outside of a firearm, specifically outside of a barrel or barrel like object (think pipe, unconventional barrel). Think any of those guys got a case or two for their trouble?