been looking at the LaRue Stealth and Daniel Defense SPR upper's and am left wondering if there is any variation in barrel taper with the Lothar walther barrels in these 2 Uppers?

I know Grant at G&R has used these barrels too, so is the LW barrel a standard taper?

I was also looking at a Noveske 16 inch Recon Match barrel that JS has used in his latest build and I am left wondering is this is yet another variation of barrel contour?

Any hints that would help me get more comfortable with my barrel options would be appreciated.

Thanks
IC