For what it is worth the Barnes book does not show any load at 2300. RL25 is the fastest at 2287 with a 105% fill. IMR7828SSC is 2155FPS with a 92% fill.
133grs of RL22 gives 2223FPS with 98% fill. If you do not have the Barnes book I can give you data for other powders if you like. PM me if so.
If you are having accuracy problems try these couple of things. First really clean the barrel. No #9 junk. Use a good copper solvent like Sweets7.62 or Barnes CR-10. Do so a couple of times. Second the Barnes bullet need more jump to the rifling. So seat them deep. .050 to .080 or more works. I have several super accurate loads with more than .100 jump.
I do not have the cartridge you have so I can only give general info. I do load for a number of cartridges with the Barnes bullets and load for even more with lead core bullets. Been reloading since 1962.
I now open the thread to those that in the past have told me that I am wrong, know nothing, and you can load Barnes like other lead core bullets and would/do use much higher charge weights than the Barnes Reloading Manual states.