Fox Mike said:
I'd like to turn this into a .327. I modified it into a true 'flat top', installed a Bisley trigger and hammer, installed the birds-head grip, and though not shown a "twodogs" front sight .
Very nice Frank!
I flat topped this old model, added steel XR3 grip frame, steel Ruger Micro rear sight, and ejector housing, cut barrel to 4 1/8", with sectioned SBH hammer. Left the frame in the white:
The 32 H&R mag is much easier to convert to 327 Fed Mag because the firing pin is already center fire and the cyl is enough longer than the 22 cyl to work for 327. After speaking with a few custom builders, they had no concerns about the 6 shot 32 H&R Mag cyl strength when reamed 1/8” deeper for the 327.
It is true that all the 'professional' 327 conversions use a longer new made cylinder that fills the cyl window with no barrel protruding thru the frame. Even though the .327 Fed Mags in the 85 Gr HP Hyrda shock and 100 gr HP loads are longer than the .32 H&R Mag chambers, the ~ .005" bar/cyl gap is sufficient for the loaded cyl to rotate w/o interference.
Super Single Six Magnum .32 H&R Mag reamed to .327 Fed Mag. Bisley hammer with modified spur, Stainless Steel grip frame, steel ejector rod housing, SBH grooved trigger w/web removed, Colt ejector rod, and free-spin cylinder pawl for ease of aligning the chambers with the loading gate.
Colt 22 Peacemaker ejector button: