Ammunition penetration studies

Many modern tank guns are smoothbore, not rifled, because practical rifling twists can only stabilize projectiles, such as an armour-piercing fin-stabilized discarding sabot APFSDS , with a length-to-diameter ratio of up to about 5: Frangible bullets, made of tiny fragments held together by a weak binding, are often sold as an "ultimate" expanding bullet, as they will increase their effective diameter by an order of magnitude. Many believe the radiating stress cracks caused by handgun bullets are not created with enough force to increase trauma. Perhaps this is one reason that this loading has a good reputation on the street. Thank you for this! Results also depend on the medium used.

R fiberglass insulation batting Dow Coming was stapled inside the two exterior test wails. The new HST loads show excellent results on the other hand. The hollow point rounds are standard ammunition of law enforcement agencies in the U. Note by Doctor Roberts: The XPB is being sold by Barnes as the TAC-XP starting in The principal weakness of that round are its lack of expansion after passing through clothing.

Like us on Facebook to stay updated! The bullet leaving one rifle may exhibit more yaw than the same bullet shot from another rifle. Tweaked out criminals can take a handgun round and keep going so take the time on the range to feel confident that you know what it is going to take to stop a human, which may mean a couple of shots. You can see in the graph above that the bullet becomes very stable from about meters, but the greatest variability - unfortunately - is within CQB range.