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2. Transitional ballistics - Wikipedia

   en.wikipedia.org/wiki/Transitional_ballistics

   Transitional ballistics is a complex field that involves a number of variables that are not fully understood; therefore, it is not an exact science. [6] When the bullet reaches the muzzle of the barrel, the escaping gases are still, in many cases, at hundreds of atmospheres of pressure. [3] Once the bullet exits the barrel, breaking the seal ...

3. 7.92×33mm Kurz - Wikipedia

   en.wikipedia.org/wiki/7.92×33mm_Kurz

   The 7.92×33mm Kurz has a 2.22 ml (34.3 grain H 2 O) cartridge case capacity.. 7.92×33mm Kurz maximum C.I.P. cartridge dimensions.All sizes in millimeters (mm). Americans define the shoulder angle at alpha/2 ≈ 17.5 degrees. The common rifling twist rate for this cartridge is 240 mm (1 in 9.45 in), four grooves, Ø lands = 7.89 millimetres (0.311 in), Ø grooves = 8.20 millimetres (0.323 in ...

4. Schlieren - Wikipedia

   en.wikipedia.org/wiki/Schlieren

   Colored schlieren image of the thermal plume from a burning candle, disturbed by a breeze from the right. Schlieren (/ ˈʃlɪərən / SHLEER-ən; German: [ˈʃliːʁn̩] ⓘ, German for 'streaks') are optical inhomogeneities in transparent media that are not necessarily visible to the human eye. Schlieren physics developed out of the need to ...

5. Table of handgun and rifle cartridges - Wikipedia

   en.wikipedia.org/wiki/Table_of_handgun_and_rifle...

   Contents. Table of handgun and rifle cartridges. Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point. This is a table of selected pistol / submachine gun and rifle / machine gun cartridges by common name. Data values are the highest found for ...

6. .277 Wolverine - Wikipedia

   en.wikipedia.org/wiki/.277_Wolverine

   The .277 Wolverine (6.8x39mm) is a wildcat cartridge. It is a multi-purpose mid-power cartridge with increased ballistic performance over the AR-15 's traditional .223 Remington (5.56×45mm NATO) cartridge. The use of a modified 5.56 case means that at minimum, only a new barrel is needed to convert any 5.56-based firearm to .277 Wolverine.

7. .416 Weatherby Magnum - Wikipedia

   en.wikipedia.org/wiki/.416_Weatherby_Magnum

   The .416 Weatherby Magnum has been standardized by both the CIP and SAAMI. SAAMI recommends a 6-grooved barrel with a bore Ø of .408 in (10.4 mm) and a groove Ø of .416 in (10.6 mm) with a twist rate of one revolution in 14 in (360 mm). Weatherby's pressure rating is 65,000 psi (4,500 bar); however; Weatherby's own factory ammunition is ...

8. Ballistic coefficient - Wikipedia

   en.wikipedia.org/wiki/Ballistic_coefficient

   Very-low-drag bullets with C b ≥ 1.10 lb/in 2 (over 773 kg/m 2) can be designed and produced on CNC precision lathes out of mono-metal rods, but they often have to be fired from custom made full bore rifles with special barrels. [68] Ammunition makers often offer several bullet weights and types for a given cartridge.

9. Forensic firearm examination - Wikipedia

   en.wikipedia.org/wiki/Forensic_firearm_examination

   v. t. e. Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene. Specialists in this field try to link bullets to weapons and weapons to individuals. They can raise and record obliterated serial numbers in an attempt to find the registered owner of a weapon and ...