Right, 300 yards seems outside the normal, practical range for either chambering. My thought is/was within 150 yards, or so, there is no practical difference. I would think a regular need or interest in 300 yard capabilities would indicate some other chambering... although I'm no expert and I have no experience at 300 yards using either.
Gotta disagree in both cases.
First, 300 yards is easily within the capabilities of the .257, no doubt about it.
Second, while the trajectory of the Hornady loads might require a bit of figuring, the energy is sufficient, and with the 160gr FTX at least, the impact velocity is within the design window for expansion. Again, not ideal, but for the shooter who knows the rifle and load, no big deal.
On a side note, John Wooters used to run a TCR in .30/30 pretty hard; 150s at about 2600, if I recall correctly. He didn't recommend it to anyone else, but was okay with it for himself. The TCR is a strong rifle, and Wooters a pretty experienced guy.
