Originally Posted by
Blackwater
IME, accuracy is a function of the combination of gun, load and shooter. Yes, particular bullet styles MAY come into play, but they're a very minor factor. I once had the Saeco 245 gr. (#441 IIRC?) SWC and a buddy had the Lyman 429421. The Lyman has a longer nose and the Saeco seats more deeply into the case with its shorter nose. A buddy also had a Super B, and this time, as luck would have it, my gun shot the Saeco best, and his shot the Lyman best. Sometimes, you just get lucky.
But I've shot all sorts of bullets in my Super B, and seldom has bullet design mattered very much. How WELL the bullets were cast or swaged often DID make a difference. Powder charges are also a factor. Some powders just seem to produce more consistent accuracy than some others in any given caliber.
The main thing, though, will be fit of the bullet in the throats and cylinder alignment with the bore. Barrel/cylinder gap can affect velocity in determining how much gas blows out there, but I've never noted any big advantage in a very narrow cylinder gap, when it comes to accuracy. Mostly, it's about good bullet fit to the cylinder throats, and a bore that's no more than .001" smaller than the cylinder throats, and good lube, and good, nearly "perfectly" formed bullets that are consistent in wt., and a good powder charge that's proven accurate. Other than that, I've never found any "magic" in any other factors, including nose conformation. Yeah, some have features that others lack, but like Shakespeare, I find it "much ado about nothing." Sorry if this disappoints, but that's my experience.