AEA Challenger barrel cut/ recrown

[cilami]

I have a Challenger Bullpup .25 that needs a new barrel end. So I would like to cut 1/2" inch or so, and then re crown. The barrel is not choked. I'll need to extend the threads, for the bushing. My question is...can this job be a diy thing or would be wiser to send the barrel to someone with expertise?. Any names to recommend? I am not bad with hand tools, but I don't have a lathe. Advice and comments will be appreciated

[j.vesper.1953]

Pretty sure this is a job for a pro.  If not  a gunsmith, at least a machist.

Hand tools will not produce a satisfactory result, either performance-wise or aesthetically.

[mobilehomer]

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