Well I have used them , and posted a thread awhile back . I was impressed at first , they are great for savages , where the primer gets stuck in the bolt , and for those who have problems with primers coming apart and jamming the actions of their guns , t-bolts come to mind , BUT , upon field testing in some wet weather , I think they are much more moisture sensitive than 209's . I had misfire problems , thank goodness not on game . It maybe a savage problem or the variflames themselfs .