It might be important to note what generation bullets that were used for the testing.
I've been shooting gen 2 (I think he is on gen 3) - 265's out to a mile.
I know this is not lab quality testing and there are a lot of variables that might produce different results... This is what has been working for me:
MV: 3400 fps ES of 7
practice altitudes: 4500 to over 8000 feet ASL
2500fps - .89
2300fps - .6
2000fps - .35
0fps - .25
I've shot over 100 rounds with decent results. These were fun to play with but I'm back to shooting the 300 SMK's.
Took 2 antelope with them this year at 865 and 605 yards. Here are the results:
I’m not supporting or opposing any claims – just stating my experience. As I said, I'm back to the SMK's.