I was surprised about the Tula velocity as well. From my internet readings I was expecting 2300-ish fps. Shootng the two ammos side-by-side, the Tula does feel like it has a little more gas though.
I'll bet the 123 in the Grendel has a heck of lot higher BC than the 7.62x39 also. I believe the 7.62 123gr SST has a BC around .290 or so.
I'm enjoying the 7.62x39 journey so far, and if there was a left-hand bolt action rifle, I'd probably have one. Who knows, might try a Ruger American 7.62x39 boltgun down the road, even if it is RH.
