with my TR and 263tt
A bit of a
Red flag I am afraid. It immediately raises the question "why only 260 odd hours?" The answers are either "bad timing, joined as company failed." " Failure to complete contract" or "paid for line training." There might be other less obvious reasons, but those are going to be the three things that come to mind when somebody looks at the relevant experience levels on your CV.
Given that there is usually a big pile of CV's (resumes) to wade through, anything that raises doubts isn't very likely to be put into the small pile for interview selection.
It might seem unfair, but you are better off having more than 500 hours on type, or none at all, rather than a small number that raises doubt. I appreciate that isn't particularly helpful in your case, but a point for general consumption.