I've been told that it won't work in a S&W 15-22. Can anyone confirm or deny?
The user manual for the 15-22 does not recommend it. However, that manual was published several years ago and I believe the manufacturers have made improvements to the "cheap" ammo with the growing popularity in semi-auto, tactical style .22's. I cannot personally vouch for the Golden Bullet but the Remington Yellow Jacket fires extremely well in mine. Others I know with the 15-22 say Golden Bullet shoots fine in it.
I have a 525rd box of Golden Bullet. Just haven't broken it open yet to test it in my 15-22.