We have been playing with the Shooters Global (SG Global) shot timer. It’s a fully integrated hardware solution paired to a smart phone app.
It’s fully adjustable. As such, it has presets for suppressed guns of various calibers. Which is handy since I’m sure the makers of this product have a better handle on the report-sonic crack v microphone sensitivity settings.
Bottom line observation: This timer will register suppressed shot of 308 caliber. They claim other rifle and pistol calibers as well, but we have not used them.
Shooters Global – SG – Timer:
“Shooting Guns & Having Fun”