Tom396
.30-06
I have shot .40 cal. PPU JHP rounds out of a S&W M&P previously, to test penetration. These are super cheap rounds, considering they are hollow point. I have seen a couple of youtube videos of them being tested, and those folks got the same results I did. The rounds shed their jacket in the first milk jug and the remaining lead passed through five more jugs and I could never recover the rounds.
Today, I wanted to try out some new Federal 155 grain HST rounds, out of my Hi Point carbine. These rounds seem to feed pretty good through the Hi Point, and I wanted to see how they penetrated and expanded. They expanded beautifully and stopped in the third milk jug. In the bottom photo, it is the round on the far left.
Then, just for the heck of it, I thought I would try one of the PPU rounds. I lined up seven milk jugs and backed that up with a log. I figured it would do what it had done out of the handgun. Um, no. Not at all! The round stopped in the third jug. Yes, the jacket had peeled off in the first jug (as it did from a handgun), but it had expanded. Not pretty, like a premium JHP, but it DID expand. It is the recovered round in the center, along with the pieces of jacket from the first jug. I tried it again, to make sure it was not a fluke. That is the round to the far right. Apparently, the extra velocity generated in the longer barrel caused it to expand.
Lastly, I fired a Tulammo FMJ round into the same seven jugs and wood backing. I had recently chronographed these rounds, and found they go pretty darned slow...subsonic slow. Well, that round went through all seven jugs and penetrated too far into the log to recover it.
Take care. Tom Worthington
Today, I wanted to try out some new Federal 155 grain HST rounds, out of my Hi Point carbine. These rounds seem to feed pretty good through the Hi Point, and I wanted to see how they penetrated and expanded. They expanded beautifully and stopped in the third milk jug. In the bottom photo, it is the round on the far left.
Then, just for the heck of it, I thought I would try one of the PPU rounds. I lined up seven milk jugs and backed that up with a log. I figured it would do what it had done out of the handgun. Um, no. Not at all! The round stopped in the third jug. Yes, the jacket had peeled off in the first jug (as it did from a handgun), but it had expanded. Not pretty, like a premium JHP, but it DID expand. It is the recovered round in the center, along with the pieces of jacket from the first jug. I tried it again, to make sure it was not a fluke. That is the round to the far right. Apparently, the extra velocity generated in the longer barrel caused it to expand.
Lastly, I fired a Tulammo FMJ round into the same seven jugs and wood backing. I had recently chronographed these rounds, and found they go pretty darned slow...subsonic slow. Well, that round went through all seven jugs and penetrated too far into the log to recover it.
Take care. Tom Worthington
