Does anyone have a source for Post 64 M70 Classic parts?? I am playing with the idea of chambering a 338 Win Mag to 340 Weatherby. I will need a new bolt stop, ejector and magazine box for the express actions (like 7mm STW or 416 Rem Mag, etc)

a good gunsmith can make it work with the pieces that you already have... www.canyonsportingarms.com just did a .340 weatherby for me....i picked it up today..... I started with a pushfeed m70 in 7 rem mag.... and furnished the .340 wtby barrel.... tip burns altered the boltstop, the magazine box and made it feed slick.... it ejects factory loaded ammunition with no alterations to the action....

As Ji, said the factory stop mag etc can be made to work easy enough. Numrich list the ones for long magnum
http://www.gunpartscorp.com/Ma...t64-34242.htm?page=7

Call Winshester, that;s where I got mine. You can search for a parts catalog online and it will give you the options for the calibers and part numbers. They may not be gunsmiths that answer the phone but in my case the gal was very helpful in finding an oddball follower.