Thread: Inaccurate Cartridges

Originally Posted by Micky Duck

same/similar bore diametre...the 7.62x39mm doesnt spring to mind as being a tack driver....doesnt need to be for its intended purpose. which leads thought process onto individual rounds DESIGNED to tumble etc....

@Micky Duck

All spitzers tumble - because their point of balance is towards their base. The Mk 7 ball merely had exaggerated rearward point of balance. A rearward point of balance also renders spitzers (translated "pointys") more accurate.

With regard to accuracy, more accurate cartridges, etc, that is a long discussion.

Military rifles are designed for reliability-- with dirt included. That includes loose chamber tolerances, whether .303 or 7.62x39. Hard to feed cartridges perfectly concentric with the bore when you have a loose-fit chamber, and as such bullets engage rifling off-axis, a major, major, major source of inaccuracy. A .303 No 4 could have been made with exacting tolerances to shoot half-MOA (with a new barrel) but look in all respects like a stock rifle, but you'd not trust your life to it. And you would experience problems with out-of-spec ammo.