Is that a Winchester 52 converted to Hornet? I never heard of such a thing. If it is, and is using the original barrel, it will be quite undersize. Use the smallest diameter bullets you can find.

I suppose I shouldn't be surprised. After all, the original Hornets were built on converted Springfield M1922's with .221" bores..

It's nice to see an old Lyman Junior Targetspot still in use. A fine scope, much like the Unertl 1".