Does anyone here own or have any experience of the above? I have just had an old air rifle returned to me, and it's horrible to shoot, low power, noisy, twangy and inaccurate. It was the same when I bought it years ago! It's the old leather piston seal version. It's not in very good order, and I'm not going to do a full restoration job, just deal with the internals and maybe sand and re finish the stock, and keep it around as a "garden magpie" type gun. Has anyone done similar, and if so, what spring did you use? Any other internal mods/bits worth fitting. I'm going to give it a good degrease and lube, but aside from that I've never had an air rifle apart, so advice would be welcomed.