Right, i have taken charge of a 4.49 pellet sizer. Read the intructions though cant find where the battery goes? Anyway, sized some mozzies and see the skirts are now nice and round, the heads are just about being "sized" too it seems. Wont shoot any sized pellets until tomorrow, but noticed over the crono consistancy is the same, but they have dropped about 6- 10 fps on average? Any ideas why this is?