just quickloaded your load
had to use a 150gn norma fmj as no ppu bullets on file
presume a .303 mk4 as a 25 inch barrel
again i assume a .303 as 49000 psi rating
with 27 gns of vhit 140 you fill half the case , only burn 80% of your powder and achieve 1700 fps with a chamber pressure of around 13700 psi
33 gns gives you 68% case fill, 89 % powder burn with a speed of 2000 fps and pressure around 2000 psi
this is theory so take with a pinch of salt....personally i would not use your load.
i reduced my load on my .308 for my partner to try a big centrefire as an upgrade from my .223
the load i used which i wont publish as its not on hand but its verified by the manufacturers as safe so its not guess work
i used a 168gn bullet with X amount of trailboss powder.....rifle shot lovely with no recoil and subsonic i believe but scope had to be altered by around 70 clicks at 110 yds.....accuracy around 40mm
perfectly safe but we moved up in stages with that powder the limit.....we then moved on to hodgdon 4895 powder and increased velocity to around 2000 fps but she didnt want to go further as its now acting like a .308 but around 5-600 fps slower than normal
if you want me to quickload data for you then please get in touch