This reminds me of a test PO Ackley did with I think the 260 AAR on the 7x57 case, the 6.5-06 and a magnum .264. He ran crazy high pressures by working up loads till they blew a primer and then backing off one grain of powder. Must have been in the 70,000 psi range but still interesting information. Between the three there was less than 300 fps difference if I recall correctly.
Layne Simpson wrote that it takes at least 300 fps difference to see any performance difference in hunting use. I would tend to agree but experience tells me that even 300 fps may be undetectable in actual field applications. I better not go further in this line of thought or I will have to empty my gun safes and only reserve two or three due to practicality.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
