Selmer...
I run the 129s, using the same charge as I do with the 140s, which is 44 grains of IMR 4350....which run 2750 fps out of my 22 inch barreled ones and 2800 out of my 24 inch barreled one...
IIRC the same load ran the 129s at 2900 fps out of my Rugers with the 22 inch barrels, but surprisingly didn't gain much velocity out of the 24 and 26 inch barreled 260s...
