I can't get the ACTIVs to load on my MEC. When I reload, all that is available to me are Cheddite primers. And they don't go all the way into the ACTIV hulls. About one out of every ten jams up my machine and with the primer hanging out-- they jam up and makes the wheel keep from rotating. So, for now I have to stop reloading them until I get different primers. But that's okay. I have a zillion Nitro 27s and a garbage bag full of the old AAs. The Cheddites work fine in them. And the new/never fired Winchester Super Targets stick in my Ljutic and it doesn't extract them. If it isn't one thing............:(