Here's some information for consideration from Dr. Roberts of what was formerly known as the IWBA (International Wound Ballistics Association).

Take it all in, and then let me know how you feel.

----------------------------------------

All information is from this thread: 9 mm 124 gr testing - M4Carbine.net Forums and this thread: http://www.m4carbine.net/showthread.php?t=26390

This week we tested some 9 mm 124 gr +P JHP's in contrast with current 147 gr duty ammunition.

Fed HST 124 gr +P JHP (P9HST3) fired from G17 at ave vel of 1208 f/s; 5 shot ave below:

BG: Pen = 12.2", Ave RD = 0.64", Ave RL = 0.38", Ave RW = 123.8gr

4LD: Pen = 14.4", Ave RD = 0.53", Ave RL = 0.39", Ave RW = 124.1 gr

AG: Pen = 14.2", Ave RD = 0.46", Ave RL = 0.50", Ave RW = 123.0 gr

Rem Golden Saber 124 gr +P bonded JHP (GSB9MMD) fired from G17 at ave vel of 1188 f/s; 5 shot ave below:

BG: Pen = 12.6", Ave RD = 0.59", Ave RL = 0.37", Ave RW = 123.0 gr

4LD: Pen = 15.9", Ave RD = 0.55", Ave RL = 0.41", Ave RW = 124.1 gr

AG: Pen = 14.2", Ave RD = 0.46", Ave RL = 0.50", Ave RW = 123.8 gr

Fed HST 147 gr JHP (P9HST2) fired from G17 at ave vel of 1014 f/s; 5 shot ave below:

BG: Pen = 12.2", Ave RD = 0.63", Ave RL = 0.39", Ave RW = 147.5 gr

4LD: Pen = 15.4", Ave RD = 0.53", Ave RL = 0.50", Ave RW = 147.2 gr

AG: Pen = 13.0", Ave RD = 0.50", Ave RL = 0.59", Ave RW = 143.6 gr

__________________________________________________ __________________________________________________ _____

The G26 is a 3.5" barrel, G19 is 4", G17 is 4.5". Generally we test using a 4" barrel, although in this specific test we were asked to use a G17. There is minimal difference using well designed 9 mm ammunition in barrels from 3.5" - 4.5". No go down to a 3" barrel or use another caliber, things can change a bit.

9 mm Speer 124 gr JHP Gold Dot (53618) fired from G17 at ave vel of 1149 f/s; 5 shot ave below:

BG: Pen = 13.0", RD = 0.62", RL = 0.32", RW = 125.5 gr

4LD: Pen = 16.6", RD = 0.51", RL=0.43", RW = 125.2 gr

9 mm Speer 124 gr +P JHP Gold Dot (53617) fired from G17 at ave vel of 1232 f/s; 5 shot ave below:

BG: Pen = 12.0", RD = 0.67", RL = 0.30", RW = 124.2 gr

4LD: Pen = 13.0", RD = 0.54", RL= 0.39", RW = 124.5 gr

Both of these loads offer acceptable performance, although the 124 gr +P has a slight edge.

__________________________________________________ __________________________________________________ ______

And more testing from Doc Roberts, this time on the CorBon 115 gr. DPX and 147 gr. Federal HST.

9mm Corbon 115 gr +P Barnes XPB JHP; ave vel=1229 fps (G19); gel cal= 9.5cm@593fps

BG: pen=14.8", RD=0.54", RL=0.48", RW=115.1gr

4LD: pen=15.1", RD=0.54", RL=0.49", RW=115.4gr

9mm Fed 147 gr HST JHP; ave vel=997 fps (G19)

BG: pen=14.6", RD=0.61", RL=0.39", RW=147.1gr

4LD: pen=15.6", RD=0.56", RL=0.53", RW=145.5gr

(There is a picture comparing the two rounds if you follow the link).