Aye, the same sintering process that allows them to '''dustify" makes them less than round, hence the jams.
Working around (pun intended) the jams, accuracy is less as well.
Might be good in revolvers that use the dummy cartridges, but spring fed magazines catch the edges of the devil, and create hangups and jams.
I did use the low ricochet bb's in the past, but they too return @ you in steel.
Straight bb's, shooting cardboard silhouette shapes , are much safer, but don't give the satisfying 'ring' when hit, and have to be replaced periodically to detect hits ( or misses) .Some spray paint over the cardboard's holes extends the life of the target, but wont last like ringing steel will.. pellets can be acceptable but most replica pellet handguns suffer from poor trigger pull, and sloppy magazines, as well as being gas hogs with your CO2.
Welding shield, heavy clothes and gloves, while using standard bb's isis option for those willing to take a hit, but most ranges won't allow you to do so