I would like to somehow be able to do it with solid 22 ammo...
Changing those cci std's into hollow points would be a good thing for bunny shoot'n...
But no...not done it with CF bullets...
Although ive heard plenty of stories of the modern day suburban GI Joe giving the soft point of bullets the ol' crissCross with a pocket knife,...those stories always seem to have the same outcome of some out of this world increase in power that results in the animals limbs being blown all the way China...
Never seen it strangely enough...
I wonder...did you experiment with the same bullet on same target in its unaltered state...?
If standard hunting ranges with 22 cals,, i wouldnt think a little damage to the tip would make much diff to accuracy....you know--sorta 150yd bunny headshots...
Ive shot 50g Zmax that had various ranges of damage due to having pulled them from cases id previously loaded...& they still removed the heads of bunny's out to 120 quite satisfactorily & still with a lovely note to the loud "pop"...
Admittedly they were reduced loads, but ive also tried them in full loads with no difference in group sizes for a .8" moa grouping load/rifle combo...
Would want to be careful how big game you shoot with them if they overly frangible--wouldnt want a roo or deer to run off with a hole in side of its head...(im just stating the obvious there-not suggesting you'd do it).
The man who knows everything, doesnt really know everything...he's just stopped learning...