M&P 45C GURPS And You

It's become a matter of canon that there's little to no difference between 9mm, .40 and .45 thanks to advances in bullet technology.

9mm does 2d+2 pi in a full size gun, 2d+1 pi in a compact.

.40 S&W does the same except pi+ in the rules as written, but I've changed it to 2d pi+ in full sized guns and 2d-1 pi+ for compacts.  The rules as written failed the reality check.

.45 ACP does 2d pi+ in full size and 2d-1 pi+ compact barrel lengths.

I know I've done this math before...

Everything will be bump up to hollow point.

2d+2(0.5) pi+ does 4-14 raw points which become 4-19 points in an unarmored torso.  The average damage will be 12

2d+1(0.5) pi+ does 3-13 raw points which become 3-18 points.  Average will be 10.

2d(0.5) pi++ does 2-12 raw points which becomes 2-22 points.  Average 12.

2d-1(0.5) pi++ does 1-11 raw points which becomes 1-20 points.  Average 10.

Except.  The M&P 45C carries 8 shots.  Assuming you land all 8 in the torso, you average 80 points of damage.  With the 3 Recoil, you're probably not.

The M&P 9C carries 12 shots.  With 2 recoil, you're more likely to land more shots, and if you land all of them you average 120 points of damage.  It's also lighter and slightly smaller.