These aren't really that effective compared to a hollow point. They create a big visual in ballistic gel, but in a more realistic medium they act more like an improved FMJ, but still over penetrate badly (which isn't a good thing in most cases).

They tend to be recommend as a bear round, where over-penetration is actually valuable and desired.

The same manufacturer actually makes a deeper cut version that doesn't over penetrate called the xtreme defender, which is generally still worse than a good hollow point in standard calibers, but can be a good option for weaker calibers like .380, where hollow point under-penetrate.

however, for 9mm and above, you're better off with a standard hollow point, which is more effective and far more affordable than the all-copper xtreme rounds.

Also @sad_detective_man@sopuli.xyz @HikingVet@lemmy.ca @GalacticGrapefruit@lemmy.world

Yes, it generates a larger cavity/hole than a JHP (jacketed hollow point) and the article continues comparing JHP to this new round.

A traditional HP is just that, the center is open, and it almost immediately breaks open on impact so shrapnel sort of goes all over the target. This is safer for everyone involved but might take several shots to stop someone because of the little actual penetration. Especially of a heavy canvas coat is worn out can severely degrade performance.

This round, is copper filled with a fluid from the sounds of it, but instead of the front opening up in impact, this his there target and spreads from the rear (the fluid moving forward causing cavitation part). This means the round had a chance to penetrate while also expanding and puting pressure on surrounding tissue which causes more damage. Still though, as it expands, it should greatly reduce velocity and not go through the entire target. A JHP might go on 2-5 inches or more based on design and caliber. Maybe this could go 6-10 inches. If it did exit, there's likely too little force to do extreme damage to whatever else it hits.

I've got some in my safe, but never shot this particular round to experience it myself. I've shot all sorts of standard ball, FMJ, JHP, and composite or lead-free rounds of numerous caliber and form factor.

Not to mention the brand has Defense in its name.