When my late father gave me his 1935 SG M54 .220 Swift (26" stainless barrel and Stith scoped) I used a Maynard P. Beuhler safety conversion, just as your detailing on the K98 Mauser- the exception being the different orientation of the paddle wing from the Mauser as to the M54-and early series M70 as to SAFe and FIRE positions-- it did require a bit of honing, the ball detent spring loaded is positive and has worked fine all these years- I also replaced the trigger with a Timney, and, like Buehler, they are "top drawer" gun part people- like Hornady, products made by serious shooters for serious shooting customers.
I also replace the G&H side mount with the higher ring set for the Stith, set up for my dad to allow clearance for the paddle wing safety-drilled and tapped the rear receiver ring and it now wears a Leupold Vari-X111 Varmint scope in Buehler 2 pc. ring base mounts--all steel, no aluminum whatever.
Thousands of handloads set for 3800 fps- No barrel or chamber erosion whatever-the prairie "dawgs' in SD and NE tremble when I uncase that old Winchester-
Last edited by Run With The Fox; 07/27/12 10:36 AM.