I haven’t seen many tests of this ammo. I think it’s because it’s a little hard to find. I finally found a box at Wal-Mart last time I was there, a little over $25 for twenty with tax. Shot into Clear Ballistics gel at a distance 10 feet using an S&W Airweight model 442 with a 1.875-inch barrel. My coronagraph is still in disrepair so I will have to shoot it for velocity after I get it fixed.
The first round in bare gel penetrated 11.25 inches and expanded to .71 inches. Round two penetrated to 11.75 and expanded to .66 inches.
Round one into heavy clothing penetrated to 9 inches and expanded to .73 inches. Round two penetrated to 11 inches and expanded to .74 inches.
I was finally able to get some coronagraph data.