The method rifling a barrel, is not as important as the quality of the finished product. Cut tubes have long been a favorite of many High Power shooters as there is/was a belief that they shot better throughout their life, button rifled barrels are just as accurate, and in the last decade have set numerous records around the world, Lilja for example. Hammer forged tubes are the type of barrel used on more than half the guns produced, Rem's tubes are hammer forged. No type of rifling has a lock on "most accurate", or "best" some things like chrome lining (FN is an example) when done right does deliver MUCH longer tube life. Those that claim one type or the other is superior, are just fooling themselves and refusing to believe the scores set by "the other type". I think it boils down the care, attention and demand for quality the mfg puts into his product-in other words it not the oven, but the baker.