I've tried the Remington Gun Club in Little Skeeter inserts and they stick. I was told that the reason the expensive Remington STS and Winchester AA do not stick is that the hull and brass are thicker and less prone to swelling. I can't vouch for that, but can vouch for the fact that I've had no sticking problems with STS and I have had sticking problems with everything else I've tried, including a couple of bismuth loads and European target loads like Rio. I have not tried Winchester AA, but they are supposed to work fine. I guess you've got to use the expensive ammo for these inserts, whether they're Seminole Chamber Mates or Gaugemate Golds. As mentioned in my last post, I think that the Gaugemates involve more friction between the insert and the old chamber than the Chamber Mates. Any thoughts?
