I have a 7mm mold but no sizer. The 7mm I have (Mauser) has a bit of an oversized bore, so I figured I'd shoot 'as is'. But how to apply gas checks?
I had done this before but never extensively... I superglued them on. Then a double tumble in LLA.
Going down range to change targets I looked around on the hillside and found a few of my fired bullets. You know, the gas checks uniformly stayed in place even through firing and impacting the hillside? Noses were mushroomed or sheared off from impact, but the gas check was still there!