I had hear that the 165 SP (flat base) had been dis-conned so I was looking around on their site. Turns out the forecast still appears to be okay 165-wise, but no more 190 Interlock. I don't think I've ever been without at least a partial box of those.
Was plinking sea ice push-ups a few years ago with 200 NABs and 190 Interlocks. The distance was approx 175 yards. Not too bad for cuppys.