I often load HST in my 9mm carry gun, and I've fired a few 10mm HSTs in my Model 20.
I don't attempt to fire a statistically significant # of top tier ammo through my guns in order to verify reliability. It would work, but it would cost a small fortune. And even after doing that you could still conceivably run into An out of spec defective round when purchasing new boxes.
Assuming the gun has a history of being reliable with range ammo, my reloads, and a bit of the top tier ammo in question- For my money a better approach is to run the rounds I carry in the gun and the spare magazines through a case cage before loading. Just like I would before shooting reloads at a USPSA match. You can pick up a case gauge for less than the price of a box of premium ammo. Or, if you don't have a case gauge you can go the budget route- disassemble your pistol, Grab the barrel on its own and use the chamber of the actual firearm as a case gauge- If the round easily drops in the chamber, spins easily while it's in there, and easily drops out, I call it good to go...when I don't have a case gauge.
Yes, I know there's other variables, magazine feeding, bullet design on the feed ramp, yada, yada, But I am simply not Shooting up a bunch of HST, Speer gold dot, or hornady FTX, etc, Every time I swap ammo.
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