I've killed 2 public land/general season bulls with my 6.5x284 at appx. 2800 FPS...no issues, FWIW.
I dare to include I used the 140 AMAX on both of those bulls too
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A bit off topic, but you can run 140's at 3K with RL-17; 48 gr. runs 140 VLDs at 3K in my 26" 6.5-284, half MOA, zero pressure issues.
I can run them around 2,750-2,800 in my CM.
DF