Hi George,
The cylinder is the weak link. Specifically the thinness of the chamber wall over the cyl notch. A five shot eliminates that problem because with an odd number of chambers, the notch is located between chambers at the thickest part of the chamber walls. Therefore then the cyl wall between the chambers becomes the weakest link.
I know custom pistol smiths have made 5 shot 44 mags on the mid frame but the chamber walls are thicker than 45. So I can't say if 45 is OK. But a few calls to Bowen, Linebaugh, Andy Harvath, etc., will reveal if they do it and think it's safe.
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]
http://www.bowenclassicarms.com/default.htm
David Clements - Clements Custom Guns
276-238-8761
2766 Mt. Zion Rd.
Woodlawn, VA 24381
[email protected]
http://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: http://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
Jack Huntington (may start barrel re-boring)
JRH Advanced Gunsmithing
775-355-6898
385 Freeport Blvd, Suite 13
Sparks, NV 89431
mailto:
[email protected]
New website: http://www.jrhadvancedgunsmithing.com old site: http://www.jrhgunmaker.com/
His turnaround time is short, his work is first rate, and his prices are reasonable.
Dustin Linebaugh - Dustin Linebaugh Custom Conversions
PO Box 263
Cody WY 82414
mailto:
[email protected]
http://www.dustinlinebaugh.com/index.htm
John Linebaugh - Linebaugh Custom Sixguns
Phone: 307-645-3332
P.O. Box 455
Cody, WY 82414
Delivery (UPS):
177 Louis L'Amour Lane
Powell, WY 82435
http://www.customsixguns.com/index.htm