Yes could also be a Brevex as Brownells sold both.

Did you find markings on the action to indicate Brevex? All I saw in your pictures is a possible date code /92.

Interarms like Tradewinds were just importers. Interarms also brought in Brevex. I believe there were a couple of other makes also.

The last batches imported by Interarms were Yugoslavian, and they included Magnum length actions. All of us at school had a least one Magnum action. The popular cartridge for us then was the 416 Remington. I recall at least one .500 Jeffery being attempted. Don't recall the outcome of that one.

In the schools there was a lot swapping and trading of components to make that "special" custom rifle. Changing of bolt shrouds-fitting a Winchester wing safety being the most favored change. Trigger fitting being the second common change.

These actions were absent the rail cut out and military wing safety to avoid ATF military rifle designation. There remains controversy over this action as ATF has issued several different rulings about them. (Post GCA 68 of course) I don't know the current status, but I do know at one time in the recent past ATF was refusing the import of any 98 Mauser action and any sporting rifle made with a 98 Mauser action. ATF took the position, that rules only allowed importation in the original configuration, not sporterized. I don't know the current stand on this, however.

This ruling is of course a backdoor attempt at gun control affecting a very small group. Why take a big bite when you can nibble away and eventually eat the whole cheese.

Les Bauska also had made and imported from China, some Magnum Mauser style actions. They were huge. At one time I had several of them. I never fit one up as someone was always offering me stupid money for them.

Back to this rifle, I stand by my opinion, that it came out of Les Bauska's shop.