03-31-2020, 01:34 AM
Something that occurs to me, is how do we know that the set of lands for a given barrel, has contact points that are exactly equal in distance from the breech face -- so that the bullet in striking those lands has a perfectly perpendicular plane (to axial travel) of resistance from the lands at that moment? If one or more lands has a slightly longer or shorter (and I'm talking 0.001" or maybe 0.005"... but not perfect -- neighborhood for distances) breech-face distance, then as the bullet strikes those lands, it will tend to get off-set away from perfectly axial bore lineup.
And even if those lands are cut perfectly at first, how do we know that they will always equally erode after each 25 or 50 shots (or whatever delta we should use for this question). Bottom line, for all except the highest price barrels, we probably do not have that level of perfection in the formation of lands at the end of the throat. And I doubt if anyone could guarantee equally-level erosion over time. But this is all as a question, I don't have any proof one way or the other.
I just wonder.
And even if those lands are cut perfectly at first, how do we know that they will always equally erode after each 25 or 50 shots (or whatever delta we should use for this question). Bottom line, for all except the highest price barrels, we probably do not have that level of perfection in the formation of lands at the end of the throat. And I doubt if anyone could guarantee equally-level erosion over time. But this is all as a question, I don't have any proof one way or the other.
I just wonder.
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