I've got an old single cavity Ideal The old one with the mold made on the handles...pre 28"..It does shoot well for me in 2 guns I tried it in. But it doesn't like to be pushed and it shoots better with a bit softer lead. I shoot it in a Ruger BH in 44 special and in a 4 inch 29-2...under a 1000FPS. The BH likes it best