These are loads listed for the normal run of the mill .303 Brit. & are listed with all the other loads running 42,000 to 50,000psi. vN133 just seems to work wonderfully with the 150gr. bullets and isn't listed with the heavier bullets.

The CIP max pressure for the .303 is 53,000PSI.
The 180's have one load just above 2,500fps, the rest in the 2,400fps to 2,500fps range.