It took me a while to find the exact foam insert for my Cabelas case (CAB51 Cabelas H51 DBL Long Gun 51") but this one is it! I had cut the foam in my case for a rifle I sold and wanted to re-use the case for a new one. The foam that arrived fit the case perfectly and now I can make sure my rifle does not move around. It's slightly thinner than the original, (less than ⅛") but it will work great.