![]() Considering that most 9mm rounds are usually 115 and 124 gr, this is quite massive. The heaviest 9mm round is the 185 gr Seismic QuakeMaker +M. Round Grain Muzzle Velocity Streak Visual Ammunition 147 1065 fps Fiocchi 9mm SUBSONIC 158 940 fps PRVI Partizan 9mm luger FMJ 158 950 fps Freedom Munitions 165 950 fps SEISMIC QuakeMaker +M 185 850 fps The Highest Grain 9mm Roundsīelow are some of the heaviest 9mm rounds available. However, most 9mm rounds range from 115 gr to 124 gr.īased on the ammo reviewed, the highest muzzle velocity was 1312 fps, achieved by the 108 gr Norma Extreme cartridge. The lightest 9mm ammo is the G2 Research RIP with 92 gr. Round Grain Muzzle Velocity Tula 9mm Full Metal Jacket 115 1150 fps Maxxtech Full Metal Jacket 115 1150 fps Wolf WPA Polyformance 9m FMJ 115 1150 fps Norma Extreme Terminal Performance MHP 108 1312 fps Streak Visual Ammunition 147 1065 fps Winchester NATO 9mm Luger FMJ 124 1200 fps Sellier & Bellot FMJ 124 1181 fps G2 Research RIP Sfps Federal American Eagle 9mm Luger 147 1000 fps Fiocchi 9mm SUBSONIC 158 940 fps PRVI Partizan 9mm luger FMJ 158 950 fps Freedom Munitions 165 800 fps Federal American Eagle 124 1150 fps Seismic QuakeMaker +M 185 850 fps Remington UMC 115 1135 fps Nowadays, several manufacturers are producing 9mm rounds with different bullet grain and muzzle velocities. It should not be confused with the cartridge’s weight, which refers to the whole ammunition’s weight, including the casing, primer, base, and all other parts of the round. Please keep reading to find out how the different bullet grain affects the performance of the various rounds.īullet grain, also indicated as “GR,” refers to the weight of the bullet. Normally 9mm rounds range from between 115-gr to 185-gr. The heaviest grain ammunition for a 9mm is Seismic’s 9mm QuakeMaker +M personal defense load. Most users default to 115-gr and 124-gr 9mm bullets, but there are heavier bullets. It’s extensively used for self-defense as well as for law enforcement. terminal ballistics), but you're putting any round at a severe disadvantage by reducing it to 1/4 the energy.The 9mm is one of the most popular cartridges for handguns, if not THE most popular. Of course, there is more to effectiveness than just energy (e.g. However, despite all that extra weight, the velocity difference results in a total relative energy of around 26% ( 1/9*2.3=0.26). ![]() If it retains 90% velocity, then total energy actually exceeds regular ammo at 104% ( 0.81*1.28=1.04).īy contrast, subsonic 5.56 is usually around 127 grains, or 230% the weight of standard 55 grain ammo. ![]() Assuming it retains 80% of the velocity of standard ammo, that puts total energy at around 82% of normal ( 0.64*1.28=0.82). Subsonic 9mm rounds are usually 147 grain or more, which is a 28% weight gain over standard 115 grain ball ammo. Of course most subsonic rounds are heavier. Subsonic 9mm, however, is still 80-90% of the velocity of normal which means it retains 64-81% of its energy ( 0.8^2=0.64 and 0.9^2=0.81), again assuming weight stays the same. Since kinetic energy is a function of the square of velocity ( ke = 1/2mv^2), that means subsonic 5.56 rounds have 9x less total energy ( 1/3^2=1/9 ) than standard rounds, assuming the weight stays the same. Regular ammo is usually in the 3000 FPS range which means Subsonic is roughly 1/3 the velocity of a regular round since it has to be less than 1100FPS to stay below the sound barrier. The 5.56 round relies on velocity to inflict damage. Subsonic ammo relies on having velocities below the speed of sound, which is about 1100 FPS at sea level, to avoid the transsonic crack. If they were concerned about staying subsonic, they'd suppress other calibers.
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