I use 165-gr Speer GDHP in my Ruger KP-91 and 180-gr Speer GDHP Short Barrel in my SIG P239, for home protection.

This might seem to be a split decision on my part, but it really isn’t. I’ve had my Ruger KP-91 for a considerable time and it has shown a slight preference for 165-gr loadings, be they factory loads or my own reloads.

My SIG P239 is a recent purchase, and I need more range time with it, before I make a final determination as to what bullet weight it prefers. Additionally, I have been distracted from this goal by my purchase of a spare barrel chambered for the .357SIG cartridge. I may decide to use it as a .357SIG rather than as a .40 S&W.

My personal .40SWs are loaded with 155gr Gold Dot for the purely scientific reason of that was what was available the last time I bought .40SW ammo. I'm not a fan of the .40 though and rarely utilize it on a personal basis and don't use it on a professional basis other than to qualify now that I have an option of what to carry.

I like the 180gr Gold Dots.

I' have winchester pdx1 180 gr jhp for carry/home defense !

I don't have an XD but I use Hornady Critical Defense in .40

Here is the reason why to go with a .40 S&W over a 9mm:

Winchester Ranger 155 gr. JHP for carry. UMC 185 gr. JHPs and various other brand TMJs and FMJs for practice. The mid weights have shown the best penetration in the data that I have seen.

All ive ever used is 180gr and Im not sure why

I used what I can find in Walmart but 165 seems to be it, both FMJs and HPs.

I use 180gr. Federal HST or Speer Gold Dot 180gr. Later & Peace

Winchester PDX1 at 165gr for at Home. Range stuff i actually use 180gr mostly, and if they have to the Winchester value packs that are 165gr.

Winchester 180gr. JHP for defense and 165gr FMJ for target plinking.

My Sig is partial to anything 180, but the Glock 23 threw them all over the map, so I use the CorBon 165 JHP, and have had good shooting with them.

i guess i'm the only one who uses 155gr Winchester Silvertips?

nobody else must have werewolf issues in their neighborhood.

Buffalo Bore +P 155 grain JHP for both my HD and PD guns.

For home defense I keep em loaded with federal 165 grain JHP.