I do not know of anyone but me and a few others I've advised, that uses the factory 32 H&R original cyl because it appears to be too short.
If you're OK with using your original cyl, reaming is extremely simple because such a small amount of material is removed to extend the chamber shoulder: .130", just a bit more than 1/8" deeper (better a little extra than too short). It's a 20 minute ream job in a drill press on the slowest speed setting but some less expensive drill presses may not go slow enough. You can also mount the cyl squarely in a vise and use a variable speed hand drill or a 'T' handle to turn the reamer by hand.
Pacific Tool Makes a 327 reamer:
http://shop.pacifictoolandgauge.com/index.php?main_page=index&cPath=135
http://shop.pacifictoolandgauge.com/index.php?main_page=index&cPath=135_427&sort=20a&page=15
$119
New Model Super Single Six Magnum .32 H&R Mag, with original cyl converted to .327 Fed Mag. I also reamed an extra 32 H&R cyl to .32-20 'Short' convertible cyl, loading chute enlarged slightly for larger .32/20 case rims. 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.
All smiths I know of will make you a longer, custom cyl, shorten the barrel forcing cone, and recut a new cone; ~ $500.
A few of these smiths are known to do the conversion:
Hamilton Bowen - Bowen Classic Arms
(865) 984-3583
SHIPPING/PHYSICAL ADDRESS:
BCA Corporation 3512 Old Lowes Ferry Road
Louisville, TN 37777
MAILING ADDRESS:
Bowen Classic Arms Corp.
P. O. Box 67
Louisville, TN 37777
mailto:
[email protected]
www.bowenclassicarms.com/default.htm
David Clements - Clements Custom Guns
276-238-8761
2766 Mt. Zion Rd.
Woodlawn, VA 24381
[email protected]
www.clementscustomguns.com/
Cylinder and Slide
245 E. 4th Street
Fremont, NE 68025
Phone: (402) 721-4277
Fax: (402) 721-0263
Orders Only: (800) 448-1713
http://www.cylinder-slide.com/
Ben Forkin - Forkin Custom Classics
PO Box 444, 205 10th Ave SW
White Sulphur Springs, MT 59645
406-547-2344
mailto:
[email protected]
John Gallagher - Gallagher Firearms Inc.
(205)384-5229
3923 Bird Farm Road
Jasper, Alabama 35503
[email protected]
closed website: www.gallagherfirearms.com
Alan Harton (Colt SAAs also)
713-772-8314 or 713-907-6031
[email protected]
Sharpstown, Texas, West S/W of Houston
Makes a .327 Fed Mag Bearcat; http://www.gunblast.com/Harton-327Bearcat.htm
Andy Horvath - DIAGONAL ROAD GUN SHOP
14131 Diagonal Rd.
La Grange, OH 44050
(440) 458-4369, (440) 355-5618
Vans Custom Guns
Sandusky, Ohio
NIGHTOWLS 1996, Utah
http://nightowlsgunsmithing.tripod.com/index.htm