My wife and I shot 44 rounds of Federal 124+P HST thru the 43X today, bringing the test to 224 trouble free rounds fired. All the rounds we fired today were 124 HST.
First, I shot a group at 25 yards. Looks like the HST hits higher than then115 loads.
I asked my wife to shoot ten rounds, barely holding onto the pistol, to see if she could induce a failure. No luck, and it really hucks the brass out there.
Then I shot a few drills with the 43X.