Aces: interested to hear how yours turns out. A while back I asked TB if they would make a .358 ultra 7 and they said yes. The shop foreman had already written the program and I guess he was looking for an excuse to run one. Baffles and end cap will pass a .419 pin gauge. They have the program written so they might do more if you asked.

I think the hybrid has more volume; will probably be quieter. Maybe a little more recoil reduction.