Hickock never met a gun he didn't like or couldn't hit targets with. This new SIG does carry a lot of promise. [posted on 7/2]
Update. Handled a 320 at a LGS. It is more bulky than the G17, including the grip. The grip angle is more obtuse (less sharp). The bore axis is higher, typically for a SIG, but why it has to be in a striker fired pistol, I don't know. The trigger breaks crisp, as advertised. The pull takes an effort though, like in a P238, which is fine considering its purpose. I was a little puzzled with the gun, because it had NO trigger safety, NO grip safety, NO thumb safety, AND a single action (in effect) trigger.
The 320 was priced a bit lower
than a 2022 next to it. It was not "flying off the shelf" when I was at the shop.
Last thought. With all sincere respect for the SIG engineering, I think the "customizable" frame is no big deal for civilian shooters. For LEO, they will speak for themselves. So far the P250 has not made a big splash.
Likewise, SIG makes a big deal of not needing to pull the trigger before disassembly. Not getting into an argument, just saying: MHO, it is NOT a big deal.
Disclaimer: I took no measurements, went by the "feel" not data.