No, I am not stating that contemporary muzzleloaders are using swamped barrels, I am not a muzzleloader fan and spend very little time even looking at them; the barrel contour to which I refer was quite common during the Page-O'Connor era and I have seen references to it's recent use bu smiths who still build very light wood-blue rifles for those who respect craftsmanship rather than parts blending. I remember Epps, dealt with him as a young lad and have handled a couple of his rifles, ah, the good old days..............