.308 trajectory issues

[rnbra-shooter]

Anyway, this isnt a big deal ..... b. im primarily concerned with accuracy, not blazing speed (hence, the choice of caliber) so im prepared to deal with large arcs. thanks for the replies.

For what it's worth, it is often the case that a nice near-max loading in a .308 is more consistent and more accurate. You might not "need" 2800fps vs. 2600fps, but oftentimes the max-loaded one is more accurate.

Are you shooting at 100yards and 200yards, or at 100meters and 200 meters?
(meters can go part of a way to explaining your discrepancy)

Guestimating from published load data, one might SWAG a muzzle velocity of 2750fps. However it could easily be 100fps or even 150fps less than that. Remington's are known to have fairly long throats, also your barrel might be on the "loose" side of tolerances. Nothing wrong with either of these things, but they will both contribute to lower peak pressure and therefore lower muzzle velocity, for a given charge weight. That's why I say that I wouldn't be surprised to see any m.v. frmo 2600fps-2750fps with your combo.

(BTW those Nosler 150BTs are really wonderful, accurate bullets).

 

[sunray]

You have to work up the load. Not just pick one and hope. According to Hodgdon's site, 44.2 is .2 over minimum for a 150 grain bullet and Varget.
Data in manuals are not comparisons or starting points for anything. They're loads developed by ballistics engineers using specific rifles or a universal receiver and specific components. The components, bullet make, primer, etc., aren't terribly important. You'll just get slightly different velocities using different components. In any case, you must work up the load from the starting load. Once you have found the most accurate load with a given powder, then you sight in.