I'm sorry to bring up this tired-assed question, but what are some top "stopping" loads for an M40 and why? I have read around a bit, trying to sort out a good load for my M40. I settled on 155 gr Speer Gold Dots. I chose them because the recoil is easier than the 180s I practice with, the Gold Dot bullet is established, and they use no flash powder. That's basically it. I have not shot at night to see what the flash actually is. I also considered some 135 grain Federal Personal Defense FFMJ ammo, the solid copper over a rubber pellet, MV of 1200 fps, or the 135 gr Hydrashock with same ballistics. My thinking here was to get close to the MV of a 125 gr .357 Mag, but with a bigger cross section and 10 gr heavier bullet. In my .45 I use 230 gr Golden Sabers. So I'm inconsistant, and use heavy rounds in my .45 while looking at lighter loads in my .40. Any opinions?