Guys

I want to build a 375 RUM / 375/404 on a Zastava (Interarms / Rem 798) Mauser action that I have on hand. It is a magnum boltface, but the magazine box is only 30-06 length. Who makes a replacement magazine & bottom metal that would be suitable for this project?

I would opine that a 375 H&H box/follower/spring/floor plate set would fit perfectly.

A properly made .375 floor plate would be too narrow for the .404.

Mr. Weibe's stuff has a good rep and turnaround:
http://www.customgunandrifle.c...icle&id=23&Itemid=19

His 4MJ model seems to be what you would want.

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The .375 box can be modified to take the 404 but its less than perfect IMO...

However all is not lost, Brownells makes a 404 box for a Mauser and it will work on a mod. 70 I am told as the actions can be cut to fit it..

Its not expensive either.

Swift also makes bottom metal that with a little modification works well..at least the drop box does..Have not used the std. but both are 375 length but the meat is thick and they modify easy...

Thanks guys

Not so familiar with Mausers, so that helps get me started.

Looks like the Weibe bottem metal will be the go. Just have to wait a month or so for the next batch to be ready.