if you can't get a 140g burger VLD to a grand at 1400fps with a good working load it's time to give the game away :roll:
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Was this the CheyTac you were meaning? :D
https://www.youtube.com/watch?v=dvC4c-aY3bQ
Has anyone mentioned 300Win Mag?
First the minimum body taper. Less taper= less case stretch. Also a better gas seal and it grips the chamber walls tighter which meant less thrust transmitted on the locking mechanism. Also a straight walled case ejects easier than a tapered case
The steep shoulder slows down brass flow so that= longer brass life. Also confined burning gasses in the case longer and that helped powder consumption
Longer necks, projectile doesn't take up powder space, also doesn't look like hell :D
That's pretty much how I read it, I would copy and paste it but I can't. I can screen shot it though if you want or send you the pdf file @Gibo
I found the tapered case bit interesting, I would have thought the tapered case would extract easier
Its alot of reading I didn't get far