Do not know if this will provide any more information or not...

But here is BH target with velocities shot from the Triumph shooting basically the same bullet...



If you look at these velocities, from a 50, using 110 grains of BH - the velocities listed go right along with the velocities from the 45 shooting a 200 grain bullet

The average velocity with 110 grains of BH and a 200 grain bullet from a 50 is: 2002
The average velocity with 110 grains of T7 and a 200 grain bullet from a 45 is: 2115
The average velocity with 110 grains of T7 and a 200 grain bullet from a 50 is: 1962