Tension/Compression barrels, water-cooled, etc

[R.G. Robinett]

Do you think they wouldnt have acclompished the same thing with the same barrel minus the tension?

I cannot answer this question. My primary recollection was that they could pick a bullet/twist/cartridge (velocity) combination and make it work repeatably & competitively: they believed in BBL tension. I suspect that, for point-blank, Dave and Jackie drove home the spike - it's probably not worth the expense and effort. RG