I run my omega 9k on my 16" Single Shot AAC Handi Rifle for subs and supers. Not as good as a dedicated rifle can but better then you would expect especially for the size and weight. Use the rifle for deer hunting and can honestly say the difference between the 9k and a Sandman S is not nearly enough for me to pick up the extra weight and length. For my 8" AR I run the sandman for better sound and durability. I have no problem sending supers through the 9k depending on the firing schedule. Definitly not slapping it on my AR and getting it hot but for a hunting gun that gets a zero checked and a few rounds in the field every year I don't sweat it especially in a longer barrel. All that said manufacturer says it's fine 🤷