Justin, I have used Remington STS (standard load) in both Gaugemates and Chambermates for my 10 gauge Lefevers. It works fine. My 10 gauge guns have barrels like bank vaults and I am not worried about shooting the STS ammo in them. For one thing, when you are shooting 12 or 20 gauge shells in a 10 gauge diameter barrel, you are reducing pressure. You might have your barrels checked. If they are as beefy as mine, you might consider the STS. I have heard that Winchester AA also works fine. I have not tried brass shells, but other commercial ammo, such as Remington Club loads, Rio or Estate target loads and Bismuth Cartridge Co. duck loads have not worked. The shells have swollen and won't extract. Pain in the neck.
