Tommy...
I carry the same round as you in my Self Defense weapon(s)...the Hornady Critical Defense .45 ACP 185 Grain FTX bullet rated at 1000 FPS...
Since I was making a big order...and collect unusual .45 ACP rounds...I bought the ARX for a tryout and to add to my collection.
Some people are of the mind that "Big & Slow is the way to go" (ME)...while others subscribe to the "Fast & Light" theory...that the bullet will do it's worst ( mushroom ) when going close to the speed of sound ( sub-sonic for the .45ACP, of course ).
"The ARX bullets are made by the high-pressure injection molding of a heated blend of powdered copper and epoxy/polymer resin.
The result is a lightweight projectile with several desirable qualities. The bullets are lead-free, allowing them to be used in jurisdictions and facilities that restrict or ban the use of lead-based ammunition. The polymer/copper material maintains its integrity as it travels down the barrel and strikes soft targets, but it fractures when it hits hard targets such as steel plates or building materials—greatly reducing the chance of ricochets."
As I mentioned...all the rounds I tested in all the aforementioned firearms fed and functioned perfectly...and seemed to do terminal damage to the items I shot at...a half frozen ham, left over pressure treated wood blocks...1/2 gallon jugs of water... sheet metal...cuts of drywall...all very un-scientific...believe me.
The slugs fired into the ham did the most damage...as did the water jugs...the other stuff was basically holes with some spall.
Didn't do any videos or take any pictures...in retrospect, probably could of... should of...but didn't.
As far as carry...I stuck with the Hornady Critical Defense load mentioned above. (Tested that too...liked what I saw.)
Like I said...I carry a .45 for a reason...big slug going fast enough to hit the target with enough authority to mushroom.