An SMLE. A very beat 1918 SMLE (BTW, other than ARs, Lee-Enfields are my fave rifle, bar none). Many gouges in the stock, but an OK bore. I was new to guns, and one was for sale at a local gun shop. On a whim I bought it ($75) and shot some grab-bag rounds. Oddly enough, it shot rather well, but after a while, the wood kept splitting and splintering every session, necessitating glue and braces. (Bad signs already...)
The recoil (and groups) got worse, so I stopped shooting it. A local gunsmith then told me I had a headspace problem to it. I was so new to guns, I said, "What's headspace?" He rolled his eyes, and said, "It would cost more to cure the problem, than to buy one in better shape. Make it a wall hanger, or keep it as a parts gun."
Too bad- I like SMLEs- when I get spare $, I'll follow his advice- wish I'd known him before I bought the first one, though....