My input is from shooting paper.  I don’t hunt any longer but I’m still on the bench a couple times a week.  For bench work I like the side focus much better than the old front adjustment. 

The added benefit of killing pigs is feeding the protected birds (buzzards).

The 1962 date for the caliber is a solid piece of the puzzle along with the serial number requirement in late 1968.  Date is narrowing down.

Thank all

So it seems I have a pre serial number 7 mm RemMag with a HOWA proof mark, made in Japan.
The bolt release has been identified as Sako and it had an old style Weatherby recoil pad on a Weatherby looking stock.  I guess it’s just an attractive old step child. When the stock comes home I’ll see how it shoots.

I would like to find/buy a hundred or so pieces.  Nosler would be nice but I am open.

Thanks, Gary

The 375 is in temporary hold.  I was able to secure the stock/barrel by delaying the trigger guard /floor plate install.  I’ll find the screw I need and finish the project.  Meanwhile on to the 7mm, and new thread.

1.1.25 update:

McMaster-Carr had 2 inch 1/4-28 in a button head cap screw black.  In preparation to cut the over length, I ran the screw in.  When I tightened it the stock pulled in just a bit more.  I removed the new 2 inch screw and reinstalled the OEM screw and all is good.  Thanks to McMaster, the project is done and the gun is ready for glass. 

I now have 10 of those 2 inch screws (minimum order). I consider them to be Weatherby stock tools.
If anyone would like to have one in their special purpose tool box, let me know. I’ll never need 10.

Working through several older Weatherby rifles I bought earlier 2024, I decided I could not sleep with the plastic stock on  Mark V s/n H240517 marked 375 HH.  Fortunately for me the great folks at Weatherby were able to provide a new high gloss wood stock.  I have had this project in the “later” mode for too many months.  Over the past several days I have cleaned the barrel to factory clean and moved on with mating the Steinway wood to the action.  All is good except the rear stock screw is too short by about .25 inches.  The existing screw measures 2.5 inches not including the button head. The action is properly seated.  I rechecked the old plastic stock and the threads do reach but would never pass FAA aircraft captured thread count.  I would prefer to purchase over length and cut them to fit.  I want matching slot heads, does anyone know of a source for 1/4x28 2 inches matching screws?

Thanks Gary

Thanks folks at Weatherby for helping reset my access.  I tried everything I knew for numerous times.
Every person at Weatherby is great.  When I call, I can tell they want to be at work!  THANKS