Re: Water capacity of 300 Weatherby
If this helps, my accuracy load in the 300 Weatherby case is 75.5 to 77 grs of RL22 or 80 grs of H1000 with 220 gr bullets.
My hunting load if I'm using 200 gr MK bullets is 90 grs of H870 or 90 with the WC872. All above with at least 30" barrels.
As you know, most shooters at Williamsport are above the pressure standards that are published in the loading manuals. It's a trial and error situation sometimes because nothing is printed with the LONG barrels in mind.
Most of the loading publications are printed "low" as to protect the publisher and manufacturer from liability by someone who has weak or faulty equipment.