WebM193 has been shown through gel testing to still fragment at 2500-2600 FPS. 77 gr SMK reportedly fragments down to 2100-2200 FPS. The numbers you listed seem to be overly conservative. Both are yaw-initiated fragmenters. People in the military use 5.56 at long range because it’s what they have. http://old.weaponsystems.net/weaponsystem/AA04%20-%20M16A1.html

So... how important is fragmentation to the 5.56 really? : r/ar15 - Reddit

Web20 dec. 2014 · First of all, AR15's with 10.3-10.5" barrels are generally more problematic than AR15's with 11.5-12.5" barrels. 5.56 mm 55 gr FMJ like M193 typically will be running around 2700 fps +/- 50 fps or so from the MK18 size guns. Web18 apr. 2024 · He also provided a Thunder Beast 223P-2 suppressor for use on the 11.5 inch barrel. Ammunition was Lake City M193 55 grain full metal jacket 5.56mm NATO and Speer 223 Remington Gold Dot 64 grain soft point. All barrels were fouled with three shots before recording began. Each trial con-sisted of 10 shots. arti bilangan ganjil

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Web11 iul. 2024 · Suppressed 5.56 short barrelled rifle velocity test data: 41 factory loads from 10.5,″ 11.5,″ 12.5″ & 14.5″. There is much confusion about the effects of these short … Web22 oct. 2012 · Adding an inch of barrel increases velocity about 25 ft/s in that velocity range for most powders. Assume muzzle velocity of 3000 ft/s for a 20 inch barrel with the same load. Most manufacturers say their expanding rifle bullets stop expanding if they drop below 1900 ft/sec. (Some say 2100, a few expand at lower velocity). WebThis is another one of the flawed studies that involve sawing off a barrel at different lengths and relying on small sample sizes. Those humps and dips are anomalies due to that particular barrel. On average, it is a smooth curve. 14.5 would be just over 2700 FPS and 12.5 just over 2600 FPS. arti bilangan irasional