These are lovely rifles to shoot, and if it has been properly resealed should give no problem for years to come. Without repeating a lot of info, read the posts on the 6M pistol as this rifle has basically the same compression cylinder mechanism, only a bit longer to give a bit more power. The trigger group also has a few more parts. Ask the owners if it was resealed 20 years ago as it probably had better quality polyurethane seals fitted then. As for power I never had a chrony when I resealed the last one but I would guess up to 6 ft lb, perhaps present or former owners can confirm. Just in passing, I would love to get hold of a model 60.
Baz
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