I have the tool in the .22 & the 6mm caliber. I noticed that the 6mm gaschecks come out more even, with smoother edges than do the .22...using .009" aluminim flashing. Do you get the same results with yours? Seems it takes more effort to form the .22 check than the 6mm as well. I plan on experimenting with lightly wax lubing the aluminum to see if that helps.