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  2. Rifling - Wikipedia

    en.wikipedia.org/wiki/Rifling

    Rifling of a 105 mm Royal Ordnance L7 tank gun Conventional rifling of a 90 mm M75 cannon (production year 1891, Austria-Hungary) Rifling in a GAU-8 autocannon. Rifling is the term for helical grooves machined into the internal surface of a firearms's barrel for imparting a spin to a projectile to improve its aerodynamic stability and accuracy.

  3. Internal ballistics - Wikipedia

    en.wikipedia.org/wiki/Internal_ballistics

    Traditional land and groove rifling is used in most competition firearms, however, so the advantages of polygonal rifling are unproven. There are four methods of rifling a barrel: A single point cutter is drawn down the bore by a machine that controls the rotation of the cutting head relative to the barrel.

  4. ORSIS - Wikipedia

    en.wikipedia.org/wiki/ORSIS

    ORSIS can offer barrels manufactured using one of two rifling processes. ORSIS barrels use 416 Stainless Steel and the Button method. ORSIS SE barrels use 4140 grade Chrome-Molybdenum Steel with the Single-Point Cut Rifling process.

  5. Forensic firearm examination - Wikipedia

    en.wikipedia.org/wiki/Forensic_firearm_examination

    [36]: 32 The three main class characteristics of all bullets are the lands and grooves, the caliber of the bullet, and the rifling twist. [37] All three can be tied directly to the type of barrel that was used to fire the bullet. [37] The lands and grooves of barrel are the bumps and valleys created when the rifling is created. The caliber is ...

  6. FN FAL - Wikipedia

    en.wikipedia.org/wiki/FN_FAL

    A number of other variants of the R1 were built, the R1 HB, which had a heavy barrel and bipod, the R1 Sniper, which could be fitted with a scope and the R1 Para Carbine, which used a Single Point IR sight and had a shorter barrel. [56] R1 was standard issue in the SADF until the introduction of the R4 in the early 1980s. Still used by the ...

  7. Mexico offers up to $1,300 to get guns off the street - AOL

    www.aol.com/mexico-offers-1-300-guns-113352729.html

    Mexico asked American attorney Jonathan Lowy to help cut off the gun pipeline, ... Rome Flynn scores 22 points, wins MVP honors at All-Star Celebrity Game. Sports. Associated Press.

  8. Why Do Dogs Make Circles Before They Finally Lie Down? - AOL

    www.aol.com/why-dogs-circles-finally-lie...

    Watch the Video. Click here to watch on YouTube. Dogs may not discriminate regarding food, but they sure can be picky about where they lie down. If you have a dog, you’ve probably seen it yourself.

  9. A case for a 50 basis point rate cut could be made ... - AOL

    www.aol.com/finance/case-50-basis-point-rate...

    "I think there is a solid rationale for doing [a 50 basis point cut]. And the rationale is that five and three-eighths, five and a quarter to 5.5% is a really high fed funds rate. It's the highest ...