Re: 7 SAUM is almost here!!!
Hello,
That barrel looks incredible!
Since you mentioned that you welcome discussion about the engineering side of things, I'd like to add. My understanding of straight flutes is that they can deliver a more stiff barrel for a given linear lb/in weight when compared to a non-fluted barrel. I think that is pretty straight forward and agreeable. You have material located further from the centerline of the barrel, where it is more efficiently put to use in resisting compression or tension.
A spiral fluted barrel still has some of this benefit I suppose, but not as much as the straight fluted barrel.
This diamond pattern is a different animal. Along the length, you have a continually fluctuating cross sectional area, and you do not have any continuous line of material at the OD: looking a cross sectional profile, it is a series of interrupted cuts.
Now, if you were using this barrel to support a weight cantilevered off one end, this would be a poor choice. But I don't think barrels really work in that manner. Stiffness is good no doubt, but to be honest is the decrease in stiffness enough to matter in application? I doubt it, but I'm not familiar with barrel harmonics. I do wonder how the varying cross sectional areas will react to heat, there could possibly be uneven material expansion.
