The weaver #82 is the correct one, but the H&R rail is much better since it has more cross slots and the rear slot is farther back than on the weaver. The weaver rail is $7, the H&R standard rail is $13.50 plus shipping. When I need to, I use the weaver, but I cut the flat spot off the back of the rail, then redrill the 2 forward mounting holes. I've also cut additional cross slots in a few of them to make mounting scopes easier. It doesn't take long with a good file.
Tim