I've used Imr and H4198 with 52 and 55gr bullets.
In several rifles, I've gotten best accuracy with both weights at 21.6gr, which is what Sierra lists as "max" for their bullets in 55gr.
FWIW, you can use any 55gr bullet data with the 52-53gr weights. The variation will be less than the variation between different 55gr bullets.
Velocity difference will be less than the shot-to-shot variation between individual rounds.
Also, observe the maximum seating depths. My Remington M7 with "Commercial .223Rem chamber wants the bullet seated MUCH deeper than the .223 "Nato" chamber will allow (AR and variants).
The Sierra and Berger 53gr FB (and Euber, if you shoot BR, you know who this is....) bullets are the epitome of accuracy to 200yds. Beyond this, the 52gr BT will have an advantage with slightly less wind-drift.