Thanks Jim..... I have concentrated on the .22 cal

mainly because I have the rifles to do them justice.

In respect of head shots it seems to depend upon what the bone density is at the strike POI. I still have much to do but it seems a little counter-intuitive. Great expansion if the softer "spongy" bone is at POI. More dense "compact" bone seems to cause the pellets to be extruded and allows for deeper penetration on the far side like I found in this wood: About half an inch of wood has been split away to expose the pellets:

[IMG][/IMG]

The Predators penetrated deeper than the JSB Exacts and CMs and did not lose the red tip which seems to have been held by the surrounding lead compressing in upon it rather than expanding away as it does in softer tissue.

Still have field experiments to do in order to establish discrimination and consistency. These are a complex pellet easily dismissed at first glance but they grow on one as their characteristics are exposed.
I think the copy cats only emerged as shooters have found them to do most of what was claimed for them as a premier hunting pellet. ............ Kind regards, Harry.