They do tend to multiply - I have three hand ejectors including an improved I frame pre-model 30. I shoot the following handloads in my Model of 1903 32 HE no-change, in my 32 HE Fifth version, and the improved I frame - all 4": 32 S&W Long
my own testing
Bullet: 98 grain lead semi-wadcutter

S&W 32 Hand Ejector 5th Change
98 grain lead swc:
fps
2.0 grains - Bullseye = 659, 642, 665
2.1 grains - Bullseye = 694, 681, 689
2.2 grains - Bullseye = 625, 757, 760
.........
Store bought factory Fiocchi Wad-cutters = 560, 587, 597, 608