I doubt that a factory load would cause a bullet to stick in the barrel, unless the powder was very old and deteriorating, or unless the factory box contained reloads, a common situation. Too often folks go to gun shows and buy reloads from an unknown source, of an unknown age, with unknown powder charges, unknown case age, etc. Not surprisingly, the trash is usually cheap, though I have seen junk reloads with price tags exceeding the best premium ammunition.
As I have said before, the only reloads I trust are my own; that way, if there is a problem, I know the idiot responsible and can kick him in the fanny.
Jim