A 147-gr projectile with a velocity of 950 fps (ballpark for 147-gr 9mm) would have momentum of 2.757 kg m/s.īy contrast, a 185-gr. (REEEE!) Anyhow, a 115-gr projectile has a mass of 7.45 grams (0.00745 kilograms) and 1150 feet per second (ballpark velocity for 115-gr 9mm bullets) works out to 350.52 m/s. Since the unit of momentum is kilogram meters per second, we have to use metric units. Momentum, after all, is Mass x Velocity and therefore means more force hitting the target, when quantified by a metric other than foot-pounds. A lighter-for-caliber projectile will travel at a faster velocity, but a heavy-for-caliber projectile will have a bit more momentum. Plenty of ink has already been spilled in the caliber wars.Įssentially the idea comes down velocity vs momentum. This is not about the merits of, say, 9mm vs. Let us also clarify that we are discussing the merits of heavier or lighter grain weights for the same caliber, such as 115 gr vs 147 gr 9mm. 424 inches is great when considering Gold Dot’s cost.Okay, so the first part: what you gain and lose with lighter-for-caliber bullets compared to heavy-for-caliber bullets. The Gold Dot is another 147-grain load it has a hollow point design with a penetration depth of 17 inches, a muzzle velocity of 985 feet-per-second. The muzzle velocity is 950 feet-per-second and an average penetration depth of 20 inches with an expansion of. This round is a heavy hitter! It’s a 147 grain 9mm self-defense round with high expansion numbers we will be reviewing today. More Good Quality Ammunition: Winchester PDX1 $1.05/round, $21/box available at most all big box stores. ![]() Although some of these stats are lower than other rounds on this list, it is worth remembering that the FBI recommends 12-18 inches of penetration for a self-defense round, this prevents over-penetration in an active shooting environment. The muzzle velocity is 1,125 feet-per-second with just over 17 inches of penetration and an expansion of. This 124 grain 9mm round has been a staple of Remington’s ammunition production for many years and was recently reintroduced with the Black Belt series The expansion and penetration are both reliable through a variety of materials with minimal deviation between individual rounds, with Golden Saber 9mm you always know what you’re going to get. See also: Glock 17 Gen 4 - Hit or Miss? Remington Golden Saber ![]() Its $.72/round, $18/box available at most ranges and big box stores. Considered one of the best 9mm defense ammo choices. This round offers similar performance to that of the Federal Hydra-Shok but at a lower price point. The round will penetrate just under 20 inches with. The round I s 124 grains with an 1,100 foot-per-second muzzle velocity. Hornady designed this round to mimic the ballistics and quality of hand-loaded match-grade ammunition, of which it does a fantastic job. ![]() Its $1.25/round, $25/box and worth every penny. One of the best concealed carry 9mm ammo choices out there. The Hydrashock round is 124 grains with an 1,100 feet-per-second muzzle velocity and approximately 20 inches of penetration with a half inch expansion. Hydra-Shok has a center-post hollow-point design that optimizes the penetration after the hollow-point expands. Top Five Choices for the Best 9mm Personal Defense Ammunitionįederal Hydroshock 9mm has been around for years serving everyone from law enforcement to everyday Americans with a cost-effective round that has the stopping power needed to neutralize the threat. Hollow points are nearly always the correct choice for self-defense ammunition widely used by law enforcement throughout the United States and private citizens in their own homes, 9mmis the best ammunition whether it’s for LAPD SWAT or your mother-in-law. ![]() However, with the advances in ballistics and bullet construction, the 9mm has pulled away from the pack 9mm ammunition offers a good balance of stopping power with lower recoil, and the added benefit of a larger magazine capacity. Previously there was quite a hot and heavy debate over. Surviving a firefight can come down to the type and caliber of ammunition that you carry. These are sometimes not the best choice for self-defense. With hundreds claiming the best 9mm self-defense ammo, how do you know which one is right for you? Most first-time gun buyers will overlook the kind of ammunition that they are using, with many picking round nose full metal jacket rounds.
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