Well of course it depends on the match and distance, that's why I put the kind of match and specifics in the original post. Hoser stage followed by long tight shots.
Looking for the least front heavy/overall weight barrel that can still make long fine shots after a long stage. Straight .625? .750 into .625? .650 into .750 like JP's lightweight?
Ah, just like that saying. Ounces equal pounds and pounds equal nothing to be concerned about.
Anyone have a weight on just the nordic tubes? Lancer has their weights listed.
Yeah, a lot less. That whole less than a tenth of a percentage increase per inch. You're way overstating the case. The 6.5 Grendel is happier in barrels shorter than 5.56. Long for a 5.56? Very long for a 6.5G.
On the other side, the 6.5 is far more short barrel friendly than a 5.56. If I were to get one, 16-18" is the most I'd do. After 19.5 (per AA's charts), you're only gaining .086% per inch in velocity.