The middle one of your bottom picture is the weak one, the huge flycut is what causes the weak spot.I have seen that photo numerous times, and it is not really very helpful. Can you point out in MY photos which one(s) might be the safe ones for Hi-Vel, or not safe for Hi-Velocity? I would love better photos showing explicitly the newer bolts compared with the older more brittle bolts. Thanks.
Sent from my SM-A505U using Tapatalk