Rory, I have never seen the 2nd rifle,but i always figured the mounting holes were the same as the spiegal rifles. I must have missed the auction thread, The interesting thing about that picture is its a takedown rifle that looks to have a custom barrel either a 1917 enfield or a 03 springfield ???? I do believe it was the forrunner of the early R-RS rifles.
And the ad says 3X for solid frame rifle
