Hi, can't seem to find a piston seal, in Australia, for this rifle

Question edited for clarity.
Question moved to a Daisy category. Please always include the model.

You need a set of o-rings and seals for it. Try Pyramid Air.

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Send it back to Beeman for service. Funny, I answered a similar question yesterday, stored scope and same issue.

https://beeman.com/repair-requests/

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Check your piston is still connected to the piston ram they can come apart and piston stays at front of chamber whilst the ram moves

The only Airgun repair shop I know of is in Minneapolis, MN.
B & B Supply 4501 Minnehaha Ave So. Minneapolis, MN
Website: http://www.b-bsupplyco.com/
Hope this helps, mark the Gunsmith
Please leave feedback, Thanks!

you have a triger fault its not locking the piston back best and safest bet is a gun smith,, never play with a triger if your not good with guns,