Congratulations on owing a Rigby with double square bridge action! That’s a dream dangerous game rifle for most people.
Early this year I bought a never fired Heym Martini Express in .416 Rigby. At the time I would not consider a Rigby because of my love for my 40-year old Heym M88B in .458 Win. That and for a while some marketing idiot at Rigby HQ published an advertisement stating that Rigby doesn’t approve of handloaded ammunition. I find blanket statements about one of my passions insulting. Stubborn yes, but that is the core of my tenacity. Thanks to what I suspect were efforts by our AH Franz Davis
@RIGBY to educate his British colleagues, Rigby corporate has stopped publishing such stupid statements.
In hindsight I find the Rigby Big Game and my Heym on par with each other. I know Heym makes their own barrels, actions, and other parts. Rigby however buys Mauser actions and perhaps barrels. Oh, Mauser makes a similar dangerous game rifle and it’s in the same class as the Heym and Rigby.
Here’s where the Rigby outclasses my Heym. That is the scope bases for the ERA-Recknagel pivot mounts. If you’ve never used them, you are missing out! I’ve even daydreamed of inquiring of master gunsmiths to machine my Heym double square bridges for those. This is only daydreaming for now.
The subject rifle is yours to do with what you desire. You did however buy a world class rifle at what I suspect was $15,000 to $20,000. Why spoil it by drilling for my near favorite Talley bases. Please know I have Talley bases on most of my fine rifles.
Now here’s the reality of this situation. With the ERA pivot flange (?) in the front square bridge, where would one have enough purchase for the Talley mounting screw holes? I think a solid steel block shaped like the ERA flange would be required to replace it. A gunsmith or machinist would have to be top notch to do this to the level of fit and finish of your Rigby. That sir would probably be expensive.
My advice which is worth as much as you paid for it is to
“buy once, cry once” and invest in those ultra-fine and operationally slick ERA-Recknagel pivot mount rings. Consider yourself lucky to have them while us Heym Martini Express owners are a little envious.