from the old forum:
Some MYTHS and HALF-TRUTHS about revolver bullets:
Making the nose longer is good because it creates more room for powder. It does create more powder space, but magnum revolver cartridges already have excess capacity. A full charge of H110/WW296 doesn't fill up the case. There are exceptions, of course, namely with very heavy bullets, or in rifles chambered for revolver cartridges. But generally speaking, powder capacity is not an issue.
Making the nose longer reduces the jump to the rifling. The nose never touches the rifling. The front band is the first thing to contact the rifling.
Making the nose longer improves alignment in the throat. The nose never touches the throat, except for the front band. For a given weight, making the nose longer reduces the bearing length, which can only hurt alignment.
The front band must be full diameter because Elmer said so. Actually, Elmer probably did not shoot throat-sized front bands. He used conventional sizing diameters, yet the guns of his era almost always had oversize throats. Elmer's "hard cast" bullets were actually a soft lead-tin alloy that obturated to fit the oversize throats.
Keith bullets are more stable at low velocities and long ranges. Keith's classic 44 design had a puny meplat, and yes, puny meplats are more stable at low velocities and long ranges.
Blunt bullets are accurate at short range but then tumble at longer ranges. When I have experienced instability with blunt bullets, it didn't matter whether the range was 50 feet or 50 yards.