Gary Reeder
in an 11" barrel in 410 GNR you should get well over 2100
Thursday, December 26, 2019, 12:19

fps with the 210 GNR and I would guess around 2250 fps with the 170 grain bullet. We got almost 2000 fps with a 6" revolver and with the longer barrel plus the absence of the barrel/cylinder gap you should do around 300 to 350 fps more. Every gun and every barrel is different so those velocities are a guesstimate.