Sir Ron,
Hornady Brass, new Unfired. Federal 215.

Here is some more on Lott, and 416 & 375 Rugers:

More on the 458 Lott, 404 grain Hammer bullet & RL-10x:
Additional loads of 416 & 375 Rugers.

Several shots did not register. I believe I registered several from an adjacent shooter.
Here is what I believe was legitimate for the 458 Lott, 24″ barrel.

74 grains:
2445, 2454, 2469, 2468

75 grains:
2499

76 grains was a total cull.

77 grains
2546

78 grains was a total cull.

79 grains:
2596, 2596, 2593
———————————
416 Ruger, 20″ barrel: 350 grain TSX
IMR 4320, 73.5 grains

2384
2349
2365
2375

416 Ruger, 20 barrel: 350 grain TTSX
MR-2000, 85 grains

2536
2514
2522

416 Ruger, 20″ barrel: 350 grain TTSX
MR-2000, 86 grains

2565
2561
2549
——————————
375 Ruger, 20″ barrel: 270 grain LRX
H380, 83 grains

2731
2719
2727
2724
2718

Last edited by ldmay375; 06/10/22. Reason: Added Primer