testing the new GUARD DOG SD ammo!
On this fine Friday morning I was finally able to go out and test the very new Federal Guard Dog 105gr self defense round in 9mm caliber. This is Federals "EMFJ", which is an expanding full metal jacket, and touted as being impervious to expansion problems. Weighing in at only 105gr's it's a very light round, and so the point of this test will be to determine if A: It expands reliably, and B: How does it compare penetration wise to the other rounds I will be testing. The other rounds tested were, Hornady Critical Defense 115gr, PMC Starfire 124gr, and Federal HydraShock 147gr.
The Setup: From 10' away I shot each round into 4 layers of denim, chicken remains, and 13% Knox Gelatin. I changed the gelatin to 13% because based on my .380 testing it was apparent that 10% Knox gelatin is still a bit weaker than ballistic gelatin, so penetration results WILL differ from FBI testing, I have no doubt, but the point is to see how the Guard Dog does RELATIVE to the other standard weight 9mm rounds. I hope you all like the chicken, I figured a little gristle, cartilage and thin chicken bones would make it a little more fun.
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Well I have to say I am undecided on this quasi-exotic new round from Federal. I think the principle of an EFMJ is sound, yet you can see that it still does not expand perfectly every time. It penetrated noticeably less than the other 9mm rounds that did expand, and the Critical Defense is a standard pressure round that's pretty light to begin with, so It would be my guess that if the FBI did testing on this that the Guard Dog would penetrate at least an inch or two less than 115 gr 9mm rounds. If only Federal made this a bit heavier and in a +P loading :confused:. Until then I guess I'll just stick with something more proven.