The numbers really sound awsome though!Sorry it took a while to respond. Been busy.
We've tested the 101s up to 4400 fps. The 101 has very little shank for penetration relative to it's size. At hyper velocity, the bullet basically collapses in on itself. It was described as a "flying ashtray".
At hyper velocity, the permanent wound cavity radiates outward moreso than inward in the classic Hammer style. The bullet basically becomes a bomb - and does excessive meat damage, again very unlike regular Hammer performance.
This is why we recommend holding back on velocity with this particular Hammer. I arbitrarily chose 3200 as a recommended general speed - because we haven't tested them down that "slow"!!!!
Sounds like they work fine at 3400. Remember, the 101 was developed for the 300 Blackout, and speeds in the mid 2000's.
Would love to have load data for the 101 in the .308! I'll post it to share with others
If you're chasing speed, the 124 does fine in performance up to 4200 fps