Anyone ever hear of

[OHJEEZE]

Rifle builder / gunsmith?
L. J. Marsh?

I see one dead end thread on the internet basically asking the same!

How about Time Precision?

 

[diggler1833]

Consulting the oracle (Google) showed one inquiry from 13 years ago with no responses regarding Marsh. I'm going to assume a very, very quick entrance and exit from the game. If you now own an L. J. Marsh barreled rifle, I'd seriously consider taking it to a qualified gunsmith who deals in precision rifles to get it looked over before before either A) wasting money in reloading components chasing a load for a rifle that was poorly machined. Or B) potentially finding yourself in a dangerous situation.

Time Precision has a website still. However, their action features are seriously outdated now. I'm guessing that the site was put together over a decade ago, and not maintained. Buyer beware if you want my opinion.