My very first .22 rifle, age 13, was a JC Higgins model 31 by High Standard. On the farm as a kid I shot "at" a lot of crows and missed them all.
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Grandpa had guest hunters from the next state over who did squirrel hunt and who proudly show me their bags full. There were about 40 acres of woods on the farm, plenty enough for good squirrel habitat with all the grain droppings they could find. The weakness of that rifle was the rear stock attachment to the receiver and eventually it broke off. I made a mold of a handgrip and cast one in resin. It's very strong, enough so that I could slot it and make an aluminum butt stock. I removed the front wood hand guard and replaced that with a flat aluminum plate using the original bolt hole. Now it's kind of a "tactical" version, easy to aim and get the cross hairs lined up.