OH BS, the material is copper and tin rather than 100% copper. The plastic tip and hollow are are clones. Have you seen a cross section of each? Inform as to the vast differences? Have you looked at the ballistic gel tests of each? Can you see any difference?
Tell me how many of either you have on the shelf or have taken game with? Do I hear ZERO?
Here's a picture of about 85% of the Barnes X, TSX, MRX and TTSXs I have on my loading bench. All but the 400 gr .411 X have taken game (hoarding them as no longer made), all have been shot on paper at least 100 times each, the WORST any will group (old X 180 .308) is 1.5 MOA which will kill anything I care to shoot at within my ethical envelope.
Two Antelope and one Mulie this past season with the 130 TTSX from the "totally obsolete" (LAFFIN) 300 Savage 99R.
BTW, virtual does not mean exact in this context. Musta missed that in your GED.