For intents and purposes you have a reloadable 22 mag with that cast bullet...with a heavier than normal bullet. I tried that way back yonder with my 2nd M-43. The 43s had trouble shooting good groups because of the mid bolt locking lugs. It could also be shimmed if IRC. Never did. My first hornet...in fact first centerfire rifle was a Savage 340 in the Hornet. It was a shooter. Found that rifle in a hedgerow. Much later I found out it was ditched by a fellow jacklighting deer. My 77-22H has a shim in it. shoots great.