Put a new scope on today and did my final sight-in. The LabRadar said the 500s were traveling 2200 and I just fired one for my initial shot after bore sighting.
I then made and adjustment and fired three 450 TSXs. They were right at 2310 with 77 grains of TAC. I can fit 2 more grains but didn't try. I couldn't find any 3031 to try (Sorry Blue).
The 450 Swift A-frames hit same POI at 100 yards as the TSX. That was a nice bonus. I shot some 458 Winchesters just to see how they did. 450 grain SAF in Remington Safari ammo were at 2150 and hit 4" high. Federal 350 grain were 2400 roughly and hit the same as the Remington's. If I used 458 Win mag ammo I would have to re-zero for sure.
I feel pretty good out to at least 250 with this ammo and rifle- probably further than they like you to shoot 458s.
