I assume we're talking about .22 Hornets here. If so, and it has a .223" groove diameter (and it shouldn't that late in the game - .223 bores were common pre-war), just use .224 diameter bullets. No harm no foul, lots more important stuff to worry about in this man's world.
I have a hard-headed uncle who swore by a 322 for Pennsylvania deer back in the 50's-60's, and killed a metric ton of them with one shot each. (PA game laws always simply said "any centerfire cartridge in a manually operated rifle" is legal, which meant a lot of marginal calibers were employed in the deer woods, and probably still are.) The last deer he shot with it took 3 or 4 shots to put the kibosh to it, so he changed course and went with an Amish Assault Rifle, a Remington 760, for the rest of his hunting days. He's pushing 90 now and still sits on his front porch in deer season with that rifle in case a buck wanders up the driveway. The Stevens 322 burned up in a house fire.
