Gents

I have a WWGreener double rifle that was chambered for 303, but some clown thought it wise to try and convert it to 410 shotgun. Given that the barrels was probably shot out, this was the option they thought best.

However the conversion wasnt a success.

I was hoping for some advice on rebarrelling to 9.3x74 as this is a very practical cartridge here in my neck of the woods.

Is this little action capable of handling this round? The fact that the barrels was drilled to .45 means that I cannot rebore to 9.3?

Finally, any references as to who can undertake such a job and what sort of cost would I be looking at?

Thanks in advance.