in this caliber hornady makes a 200gr XTP that penetrates 19" in a gel test with a velocity of 1191 fps.

http://youtu.be/XIeiWem_xSs

10mm PBR 200 gr Hornady XTP fired from 4.5" EAA Witness through four layers of denim into calibrated gelatin.

BB calibration: 594.4 fps, 3.75"

Impact velocity: 1,191 fps
Penetration: 19.9"
Retained weight: 192.8 gr
Max expansion: 0.579"
Min expansion: 0.509"

TNoutdoors9 tested the 200gr XTP loaded from underwood ammo and got 1261 fps, .675" expansion on average and only 16.125" in penetration.

At short range is the slower loading better??

is the underwood loading only going to be as good as the slower load in longer distance shooting?

the factory hornady load is even slower, about 1083fps as tested in a factory glock 20 barrel, here http://www.gunclassifieds.com/blog/1...-hornady-ammo/

it penetrated 23" !! and expanded to .530"

Are people getting so wrapped up in speed in the 10mm all for naught as these bullets don't seem strong enough to hold up to this speed??