Hornady put that goopy little red stuff in the HP cavity specifically to keep it from getting filled with debris, because debris will predictably cause failure to expand. It's interesting therefore to see it fail--and fail spectacularly!--but I am not sure why it failed. And I've never seen a test before where it failed (and I know of no actual shootings of attackers with FTX). So I'm surprised.
I am also surprised that all other HPs failed miserably...but the DPX did great! Why should that be? Does the DPX expand through some other mechanism beside hydrodynamic pressure inside the HP cavity?
Without explanations, lots of results can surpirse me.
No they aren't. Expanded 9mm bullets run from .65-.77" these days, not .43-.45".
Yeah--like I said, "goopy little red stuff."FTX doesn't have "goopy stuff" in the hollow point cavity. They have a "soft polymer insert".
Maybe you are right. I haven't actually taken anatomy in a while. I was visualizing the pec area anyway and typed it out wrong. Even there it is probably less than an inch. I was thinking of the people I work with. We really only have two types. Those with above average muscle mass and completely fat and out of shape. Not exactly a good cross section to draw from.I don't think most people have an inch or more of flesh in front of their sternum. I doubt it's more than .25-.5" inch.
I read somewhere that the Hornady's design was so that the issues of over penetration would be greatly reduced.
Obviously this test shows other wise.
FTX doesn't have "goopy stuff" in the hollow point cavity. They have a "soft polymer insert". I suspect that the former acts more like a hole stopper (plug) than it acts as a "plug preventer" because it "adheres" to the inner circumference of the cavity. The polymer plugs are loose, not "glued in", so the cavity is free to expand. This is just my conjecture...
How exactly do these plugs help ensure expansion? My understanding was that old fashioned, "unplugged" HPs can "fill up" with matter and thus prevent expansion. How does pre-filling the cavity change this picture?
I don't think most people have an inch or more of flesh in front of their sternum. I doubt it's more than .25-.5" inch.
True, but the sternum is relatively narrow. Move far enough off-center to hit thick flesh and you miss the sternum. Also, bullets don't expand until they pass through at least a couple of inches of flesh, right?At the mid-line you're probably correct. As you move out the tissue increases in thickness.
True, but the sternum is relatively narrow. Move far enough off-center to hit thick flesh and you miss the sternum. Also, bullets don't expand until they pass through at least a couple of inches of flesh, right?
No, I only posted what I said in the hope that real world results would show these rounds do stop the bad guy.just a thought:
they are marketed as "law enforcement ammo" and each of these companies has tons of test equipment and brainpower.
If you ran a multi-million dollar ammo company, would you market ammo to LEO's that you felt was sub-standard
just a thought:
they are marketed as "law enforcement ammo" and each of these companies has tons of test equipment and brainpower.
If you ran a multi-million dollar ammo company, would you market ammo to LEO's that you felt was sub-standard
I disagree.You did a disservice to the members of this forum.
You did a disservice to the members of this forum.
Why did the govt order from Winchester 200 million rounds of 40 caliber ammo with a 135 grain HP bullet.