Even with the rifle bullets, Barnes data and other similar weight bullet data is different. The longer bearing surface (mitigated somewhat by the new bands or relief grooves) and the natural 'stickyness' of pure copper VS gilding metal used in most other bullets throws a lot of curves into the mix that must be accounted for. Then there is the fact of less room for gunpowder.
It was trying to run the old original Barnes X bullets at 3800-3900fps from long barreled long throated custom 257WBY's that got me into Moly Coating. I still do it because I am a total velocity whore, but it is less neccesary than it used to be. I don't moly my 338 or 416 Barnes bullets, for example.
LOVE God, LOVE your family, LOVE your country, LIKE guns and sports.
About 2016 team "R" candidates "We definitely need a crew with a sack of balls the size of hot water bottles, bloviated estrogen leaking feel-gooders need not apply." Gunner 500
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