04-14-2018, 07:55 AM
5R supposedly can add up to about 50 ft/sec give or take, but I don't recall seeing any objective data on that. I had one 18" barrel that was 40-50 ft/s faster than I thought it would be, but a couple others are right about where others report for that length.
"Down the floor, out the door, Go Brandon Go!!!!!"