Found on the table a thin ring of lead I think must have fallen out from between breach and barrel washer which must have been the restriction but I removed barrel seal and as I said put a needle file around the edge of barrel to remove any burrs.
Success, thanks guys the pellets fit easily from both the single and multi shot trays now it's a great bit of kit.
I put a £40 scope on mine and its the best bit of kit I have ever had for sub £200.
You can spend thousands and still miss a barn door or spend just enough and enjoy yourself. If you haven't got the talent to start with a million pound won't fix it. Whippet, Russell, a few bang sticks and a flat cap. http://www.smart-tech1st.co.uk