Bert

triggerhappy said
You probably are right about their return policy, I don't know, but if I have to pay a gunsmith to do a chamber cast, I doubt they do those free either. Selling the Weatherby ammo at a slight discount shouldn't be difficult, and who knows maybe I need it. At the end of the day I think I'd save money, and I don't have somebody handling my rifle, and telling me "that scratch was already there". I had that happen with my truck.
  

Respectfully, your math is good but reasoning is flawed. Chambering a round does not necessarily tell you all you need to know about a rechambered rifle with vague markings. It won't tell you if the chamber is cut correctly or eliminate the possibility of a wildcat chambering larger than the chambered round. 

Mike

Pat

TR said
 I bought it 60 years ago and it was a used 760. It was replaced by a model 70 that I still use. T/R
  

I always wanted a 760 BDL in 257 Roberts. Collectors items now. 

TR said
  My first deer rifle was a Remington 7 something pump in 30-06 with the Pachmyr side mount on an old Weaver. It was accurate and easy to take off and install without affecting accuracy. I spent some time with the scope in my pocket and some time with it on my gun, yet when it came time to sight it in it did not require adjustment. T/R
  

Tom, depending on your age, could it have been a 721? That was Mike Walker's contribution to Remington's postwar survival. EDIT - I didn't see the word "pump." A Remngton 760 was the first iteration.

The 721 was plain and without checkering but remarkably accurate. The older 725, based loosely on the Enfield action, was too expensive to make and sell at a profit. What Walker did was think outside the box [he was a chemical engineer who needed a job] and design the 721 action to be cut from a single piece of round stock, using multiple fly cutters in one pass. Stamped small parts. Remington sold them at a good profit and at a price point where they almost couldn't build them fast enough.  Dupont's board of directors changed its mind about closing the Remington gunmaking operation, almost entirely because of 721/722 sales.

The icing on the cake was Walker's design was is very close to modern benchrest design thinking and his trigger - made of stamped parts - was a standout.  Was it a coincidence Walker and Wayne Leek were dedicated benchrest accuracy nuts? Ever hear of the 40XB? 

I'm a Winchester devotee first, last, and always but I was very sad to see Ilion closed. The 721/722/700 action lives on made by other hands because it is still the starting place for accuracy. My first centerfire rifle was a Remington 600 carbine in 6mm Remington -- the most gun you could get for $99 USD in 1966. 

Best Regards,

https://www.ebay.com/itm/257794558691?_skw=Packmyr+scope+mount&itmmeta=01M4TPYEP01TQ54JPWWE7J90M3&hash=item3c05c0cae3:g:q~IAAeSwANdp-pmZ&itmprp=enc%3AAQALAAAA0CHNgUiiE%2FjQhlDTaMiAde8alZ44VHDcXxQtbba7Zcexoz5bOV%2F6JPOtaRO%2B%2BJAF8M4YSHgwdQ0E1w7CerdOdfZ6tMx4jzOhyepET1U7%2FJz5iu3xr1Yar0EFW0I29mFtJ9c1uEmuDU3YGRbMPPXF4CzYdlWjAW4Gvo8EX%2F3%2BItKefFizXwOKtBgFxVXlwFLLfFCGeXtXSAYTVMWO%2BfEdLNQVFy8nkDSwt7iMtsIHH9cMPvRk5AQT6QmeU7Y1RtL0rhZdDc8CxNxpQCfUFinWDNY%3D%7Ctkp%3ABk9SR4Ts-damaAfffff

The channel cut in the back would allow for the receivers radius...

Have you considered a modern, conventional, top mount scope on the Gun?Not going to hurt anything and likely save some time and money…

Just measured the CtC on my aforesaid M70 . . .

The two visible screws/holes measure 2 7/8” CtC.

There are two MORE screw holes down, below the woodline.

These four holes were for the Pachmeyr tip-off side mount.  (UGLY!)

Judging the pictures above . . . . my rifle had the mount about 1” further forward on the receiver.

As mentioned above, ole’ Harry Haight had done a TON of these Pachmeyr Side Mounts around here!

Hope this helps.