Originally Posted by
Hot Cereal
What kind of velocity were you getting from the +P and standard pressure? In the standard pressure I notice negligible difference in velocity between a 3.1in Shield barrel and 3.7in APX barrel (1050fps). When shooting it through a polygonal rifled P2000 barrel the speed increased 30fps to 1080fps. Even a Glock 17.2 barrel barely yielded an average of 1100fps and if I had chosen to shoot 10 instead of 5 rounds I suspect the average would have been 1085-1095fps. The Federal AE9AP also averaged similar numbers, being about 20-30fps slower than the HST in each barrel length. I thought this was a considerable performance decrease. I expect to see 1050fps or so from the short barrel of the Shield, though I was expecting a bit closer to 1075fps. In the Beretta APX/HK P2000 I was expecting results closer to 1100-1125fps, given the load is specified to produce 1150fps from a 4in barrel.
Another factor I can’t overlook- while bullets shot informally into water filled 2L soda bottles did expand, they only penetrated 2 bottles. While this is unscientific and not able to be quantified, in a rudimentary fashion I can compare that to the penetration I received from 165gr HST (.40), which penetrated 3 2L soda bottles, and 135gr +P Critical Duty which penetrates nearly 16inches of informal wet-pack. Before the ammo crunch started I planned to order some more ammo and some clear ballistics gel (I know it isn’t ‘true ballistics gel’, but it’s a consistent medium against which to measure multiple projectiles.) and test them all again.
After my informal testing I assisted a friend with dispatching a troubled ground hog and was quite pleased with the performance the 124 standard pressure HST exhibited. I was not able to recover the bullet. With the results of my informal and unscientific testing I have penetration concerns related to the 124 HST standard pressure. These concerns have not caused me to cease carrying it, more the ammodemic has provided me with little alternative. I prefer the penetration capability of Critical Duty, but do not want the logistical issue of not being able to effectively use that bullet in the Shield or APX/P2000. All my testing of that bullet was from a Glock 17.2.