absolute utter nonsense. What on earth use would be a more powerful bullet be if it broke up faster than std soft lead ? yet impacted at 3 times the velocity and was designed to kill bigger quarry ? Lets take a 222 jacketed softpoint 50 grain as used by the first lot of NZ deer cullers , The greatest majority of nations use 22 cf legally for deer , the indigenous Inuit use many 222 and 22 hornet for large ungulates. Reindeer, Caribou or seal and walrus shooting at close range often in water or on ice. In these circumtances the bullet is at its faster range , break up to harmless dust ? Heck no ! Have you seen the size of a walrus?
Its just the resulting ricochet is silent you will very rarely hear the Zing noise because it is still supersonic it will be covered by the muzzle report if its not its likely further down range . Stand in the Butts at a MCQueen shoot , plenty bullets pass over all you hear is a "crack" after passing though plywood backed targets
if it hits something it breaks up into "fairy dust" is utter rubbish and folks who believe that rubbish should wise up or get revoked ! Energy is the biggest factor in ricochet danger once we remove the nut behind the butt with his fairy dust theory of bullet terminal performance.
The only real times the user will witness a CF ricochet is when 1. something gets hit in the background i know of a horse , a sheep and a very expensive Bull as they guy decided rather than risk his ticket with a claim he would just pay up and the farm took full advantage . 2. you see a rooster tail of spray as the bullet passes over wet grass , I have had this happen personally ! after passing through a roe one early morning .
My feo actually said this about the HMR and i offered to take her outside and create a ricochet in a safe area to show how wrong that is .
Sure thats not much bullet and if you hear it then its subsonic , if its not subsonic though you only know when it hits something solid and definite enough ( as in a backstop) - PLEASE REMEMBER THAT!