.177 Mercury S

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Thanks Tom, yes glad I’ve restored her a little those seals are really made of cheese! Hopefully I’ll get some time on the weekend to put some pellets through her.
Cheers
Dave

I had a Mercury Challenger (same action, beech stock) in 94. The buffer washer was never a problem as it was removed and the hole for the securing roll pin was redrilled, all to increase the swept volume. Removing the washer gave a little more power but not enough to push it over the limit and produced a smoother firing cycle.