MachIVshooter
Member
It's not a "gimmick", but in the Five-seveN platform, I don't consider it a serious self defense round either. The cartridge was created for a very specific purpose in a specific weapon, and that cartridge/bullet/weapon combo performs as designed. Handicap the ammo and then further diminish it's performance by putting it into a short handgun barrel, and now you have what is, IMO, an expensive plinker.
No, it's really not. Around 2,000 FPS is where we see that effect start to factor in, but it does not really become a reliable wounding mechanism until you get over 2,500-2,600 FPS. There is a great deal of information out there showing how dramatically decreased the effectiveness of the 5.56mm NATO is once velocity drops below that point.
Even the hottest botique 5.7mm ammo barely gets into the 2,500 FPS range from the Five-seveN pistol. Most loads are 1,800-2,000 FPS.
Dude, you need a micrometer or a set of feeler gauges. .130" is more than 1/8", which is about the height of a capitalized letter character on most screens. The underscore is more like 0.008".
That's the thing. The fiveseven does its damage with cavitation trauma. The bullet is traveling fast enough to cause the stretch cavity to expand beyond the tissue's elastic point
No, it's really not. Around 2,000 FPS is where we see that effect start to factor in, but it does not really become a reliable wounding mechanism until you get over 2,500-2,600 FPS. There is a great deal of information out there showing how dramatically decreased the effectiveness of the 5.56mm NATO is once velocity drops below that point.
Even the hottest botique 5.7mm ammo barely gets into the 2,500 FPS range from the Five-seveN pistol. Most loads are 1,800-2,000 FPS.
That comes to one hundred thirty-one thousandths difference which is roughly equal to the size of the following underscore mark _.
Dude, you need a micrometer or a set of feeler gauges. .130" is more than 1/8", which is about the height of a capitalized letter character on most screens. The underscore is more like 0.008".
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