has anyone tryed daystate LI pellets

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HI Gents, has anyone tryed daystate LI pellets , i was told they are the same as crossman acupell, anway i bought a 177 cal FX CYCLONE carbine about last october , tonight me and the wife went up the wood yard to do some target work and to see how accurit it is at 30yd abought ran out of gas but crossman prems that i got given 18months ago seem to give the best groups but they were very hard to push in is this normal ? , thanks border.