Went to my local range today The Wiltshire Shooting Centre and tried these pellets,thought to myself these are going to be fast ,and yes they were . My Platinum shoots Daystate 4.53s 8.44 grains at 775 to 778 fps then put the H&N Feild Target T Green 5.56 grains Lead Free through the chrono and 930 fps =10.68 ft/lbs. Then shot at some of the spinners we have at the bottom of our range ( 23 yards ) and they hardley moved, so fast out of the rifle,energy low. So when i go to the Daystate Winter League next week at Worcester i will try them on the plinking range to see how they do,and i hope its a bit windy just to see how far they blow off course . Going on other light pellets that shooters have tried i don't hold out much hope for these as an HFT pellet,indoor shooting maybe out door well will let you know.