Thread: A question for the doubters

Gel tests conducted in calibrated 10% ordnance gelatin are informative to understand the relative size of permanent cavity that can be expected from a particular type of bullet at a particular velocity.


Unfortunately no hunting ammunition manufacturers make these available, however as I've posted before Hornady does publish these on their LE website (people who really need ammunition that functions tend to be greatly interested in empirical data reliably demonstrating that function).



223 75gr "TAP". this is a 75gr poly tipped bullet - basically a 75gr ELDM with a round tip to allow it to fit in AR15 magazines. Fired from a 10.5 inch barreled AR15 at 2200fps. Note the tremendously slow MV and the relative performance.






6mm ARC 106gr "TAP". This is a 106gr version of the ELDM. No, I don't know why. Although it is a slightly different bullet, it is more reasonable to expect that it performs very similarly to a 108gr ELDM, than it is to expect it to perform differently. Fired from an 18 inch barreled AR15 at 2625FPS.



.308 155gr ELDM. Fired from a 26 inch barrel at 2789fps.




Note the relative sizes of wounds produced. Also note that this is a particularly good bullet for fragmentation used in the .308 - a generic cheap soft point would not produce as large of a wound. This is the importance of the construction of the specific bullet. Also note the low velocity of the .223 round.


It is counter-intuitive but it is measurable and demonstrable.

Originally Posted by gimp

223 75gr "TAP". this is a 75gr poly tipped bullet - basically a 75gr ELDM with a round tip to allow it to fit in AR15 magazines. Fired from a 10.5 inch barreled AR15 at 2200fps. Note the tremendously slow MV and the relative performance.








.308 155gr ELDM. Fired from a 26 inch barrel at 2789fps.

Ah yes the lack of penetration from .223