Personally I cut all the scientific stuff out and light em up when there feet are down!Cleaner 1 shot kills,less frustration for your dog chasing crips,and few shootem again bs!!At 25 yards on your spread little to no lead,and less shy birds!Hunted 2 many public refuges to know 1700fps doesn't mean clean consistent kills at 45 to 60 yards!Letem work for more kills instead of how far we can stretch the gun barrel!just my take!!

speed vs recoil
 

yall just wait till the retinae detaches from you eyeball due to the recoil from those hot ounce and a quarter loads.
at 1 1/4 ounces, 546.86 grains at 1550 fps is closely approximating the 458 win magnum 300 gr bullet at 2250 fps generating close to 60 foot pounds of recoil, twice the recoil of an 30-06.
young eyes get old quick and old eyes retinaes detach, eventually.
IMHO