Detroit Ammo Co. Subsonic 9mm 165gr RN Round Nose Ammunition 50rd Box

Why such a heavy bullet? What do 165-grain bullets do that a 115-grain bullet can’t? The heavy bullets are slower and won’t break the sound barrier, which is 1125 feet per second at 68˚F. It varies depending on temperature. Advertised speeds for our 165-grain bullet are around 880 fps or less from pistols and are not likely to reach the speed of sound even from the longer barrels of submachine guns and carbines. That makes them a good choice for suppressed guns as they will remain subsonic and won’t produce the “crack” sound of little sonic booms that faster bullets do when they break the sound barrier. In fact, most 9mm ammunition with 165-grain and heavier bullets are use for this purpose. That said, 147-grain bullets, which travel around 1000 to 1050 fps from the typical pistol barrel, are not bound to break the sound barrier, either, though some might at some temperatures and from long barrels.

Heavy bullets in 9mm are not just for suppressed guns. Another advantage to heavy bullets is their reported enhanced reliability in taking down steel targets used in various practical competitions. Rounds generally must achieve a power factor of 120 or 125 to qualify for Minor power factor scoring, depending on the sport (IPSC, USPSA, IDPA, Bianchi Cup), and heavy bullets are said to be more effective at knocking down steel plates even when they are at the same power factor as lighter bullets.

So, if you are like some folks who prefer the recoil impulse of heavy bullets because it feels more like a push compared to the snap of light weight bullets. These heavyweights were delightful to shoot, so if you’re looking for soft-shooting, hard-hitting bullets, give them a try.

These will cycle suppressed or un-suppressed for pistols and un-suppressed in all platforms for a super light recoil. The ultimate competition/match shooting round and the quietest subsonic pistol round out there.