But the 41 magnum starts with a 4 and the second digit isn't 010mm is quite a good shooter, in the right platform. A G20 is a good starting point, but the G20C was an answer seeking a question. The G20 beats the G20C handily, in my experience. I have owned both.
The comparison of 10mm and 41mag are misplaced. Very little overlap (or none) between these 2. Now take the 357mag & 10mm and you have TONS of comparisons. The 10mm seems to have the edge in the heavier bullets, but I've seen talk about 180gr 357mag referenced back to Elmer Keith. Above that, it's almost all 10mm.