So I got my first revolver the other day, a used Taurus 605 .357 (wanted something small yet powerful for backpacking). I took it to the range, and the cylinder jammed on a couple of shots, though that was likely due to my own inexperience allowing some powder residue to get under the extractor. Anyway, other than that it shot fine, and I have been unable to get it to repeat that jam since I cleaned under the extractor (and I now know to eject spent shells muzzle up). My concern here is that I have noticed the cylinder gap seems to taper inward toward the top of the barrel. It looks like the gap at the top of the barrel is about 30-40% narrower than at the bottom. Is this a feature to prevent any frame cutting from the pressure that escapes at the gap, or is this an irregularity that needs to be addressed? I appreciate the help!