I’ll touch on a few of these below.Ī 155 grain Federal HST cartridge produces approximately 1,160 ft/s at the muzzle and 463-foot lbs of energy on target. 40 S&W with most being between 155-180 grain. There is a wide variety of loads for your. 40 S&W is an ideal round for everyday carry (EDC) or home protection. This also allowed them to produce an 18- grain projectile that produced near-identical velocity to that of the FBI’s standards.40 Caliber Performance 40 S&W was developed in order to be retrofitted for medium-frame handguns while replicating the performance of the 10mm Auto cartridge.īy streamlining the 10mm Auto, Smith & Wesson found they could remove the airspace in the case and decrease the 10mm case enough to fit an average 9mm semi-auto pistol frame. This new round needed to offer increased capacity and had to deliver performance greater than or equal to that of the load currently carried by agents.Īfter extensive testing, S&W joined with Winchester to give birth to this new caliber. The aftermath of this incident caused the FBI to begin looking for a new caliber to take the place of its service revolvers. 357), pistols (chambered in 9mm), and shotguns. The agents at the time were carrying their service revolvers (chambered in. 40 S&W began its development after the 1986 Miami shootout involving the FBI where two agents were killed and another five wounded.
40 S&W is a rimless straight pistol cartridge that uses small pistol primers.
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