Table:
text: .38 Special
Performance
.38 Comparisons
Cartridge Bullet_weight Muzzle_velocity Muzzle_energy Max_pressure
9x19mm Parabellum gr (g) ft/s (m/s) 383ft•lbf (520 J) 39,200 PSI
9x18mm Makarov gr (g) ft/s (m/s) 231ft•lbf (313 J) 23,206 PSI
.38 Super grains (g) ft/s (m/s) 468ft•lbf (634 J) 36,500 PSI
.357 Magnum grains (g) ft/s (m/s) 639ft•lbf (866 J) 35,000 PSI
.357 SIG grains (g) ft/s (m/s) 506ft•lbf (686 J) 40,000 PSI

Question: What is the muzzle energy with front grains (.38 special bullet weight and a maximum pressure of 35,000 psi)?

Question: What is the maximum pressure for the 468 ft lbf (634 j) muzzle energy of the .38 Special?

Question: What is the muzzle energy of the .38 Special with a maximum pressure of 40,000 psi?