The .357/.44 Bain & Davis (B&D)
Why do a page on the 357/44 Bain & Davis? In it's time, it was a leading kick-butt revolver round, offering 357 Maximum performance in the stock revolver cylinders (1.290 case length). So... why not? Some of the articles were written by people who were there. Way before QuickLoad, cheap digital chronographs, current powders, and... unfortunately, lawyers. Many lawyers.

If you know of other period or current 357/44 Bain & Davis articles, please contact me HERE .



Why the 357/44 Bain & Davis?

   My interest with the .357/.44 Bain & Davis round came in the form of a 22" Encore barrel. This round approximates the performance of the much vaunted 357 Remington Maximum (which is the .357 Super Mag, developed by Elgin Gates) in revolvers, not just in a T/C Contender. 
S&W Model 28 and Ruger Blackhawks have been chambered for this round, as have Winchester 1892 lever actions.

Who Came Up With the Conversions?
  The fine folks at the Bain and Davis Gunshop in the People's Paradise of California (5 Dec 2017, not getting it to load...).
Dies and reamers are available. (I have Hornady New Dimension dies). "Developed in about 1964 by gunsmith Keith Davis, the .357/44 Bain & Davis was intended to be used in modified .44 Magnum revolvers in order to improve the velocity of 158 grain .357 caliber bullets compared to .357 Magnum performance. It also gave long barrel performance in a standard length barrel." (Accurate Powder cartridge description)

Comparable Cartridges

.357/.44 Bain & Davis has a case capacity 33 grains of water. The case shape with the significant taper is the shape that current dies use. The first shape (circa early 1960s), with the normal bottleneck shoulder (25 degrees), proved to be more prone to set-back. The current version (circa mid 1960s) uses a significant taper (10 degrees). Writers mention that setback becomes noticeable with extremely heavy loads using the current design.

  .357/.44 Bobcat, which is a similar shaped round. However, it uses a poly ring around the neck in conjunction with a 357 Mag cylinder that has been bored out at the rear to accept a .44 Mag body. The front of the cylinder has a .357 mouth.



.357 Auto Mag Pistol (AMP), another contemporary round (case capacity 35 grains of water). The 357 AMP cartridge is based on cut down and reamed out rifle brass (308 headsize). It is much easier to form 357 AMP using 44 AMP cases. Starline does make 44 AMP brass, but only when sufficient orders are on-hand. Quality Cartridge makes 357 AMP, but pretty much the same deal.
Midway lists the AMP cases as back-ordered, while Grafs has 44 AMP, both brass and nickle plate (as of 20 Jan 2013). Cartuchos Deportivos Mexico (CDM) made a single run of 44 AMP. Norma supposedly also made 44 AMP, but I don't know how much. Corbon has made loaded ammunition for the 44 AMP, but that is an expensive way to get brass.

.357 Remington Maximum is a straight walled case. However, it's case capacity is 33.6 grains of water.



Forming the 357/44 Bain & Davis
  Buy new 44 Mag brass. Lightly lube neck area to be with a sizing lubricant (I used Redding Imperial Sizing Wax). Start with 357/44 B&D sizing die set up high, screw the die down while checking to see if the tapered shoulder and neck are formed (and fit your chamber!). Lock down sizing die and run other cases through. Check case length, trim if case is too long for chamber.

Neck Length
  It is about .150 long, so you cast boolit shooters may be limited as to boolit length.


Case Capacity:
lar45 wrote: Quickload shows the capacity for the 357 AMP at 35gns H2O, the 357-44 B&D is 33 and the 357 Max is 33.6 The AMP shows a lower pressure at 37k with the Max at 48k.


Powders
  Most loads use WW296, H110, IMR4227, Unique, or Blue Dot. Accurate powders listed are No 7, No 9, and 1680. The Alliant Power Pro 300-MP information is included for my own investigations. As of right now, I have not found any official loads from Alliant for the 357/44 B&D, the 357 Remington Maximum, or the 357 AMP rounds.


Reloading Equipment

Hornady
546404 Custom Grade New Dimension 2-Die Set 357-44 Bain & Davis

RCBS
56426-Die Set-H 3-Die Set with Roll Crimp 357-44 Bain & Davis (Special Order)
57010-357-44Bn&Dvs Base Form-H Base Forming Die 357-44 Bain & Davis
57021-357-44Bn&Dvs Sizer-H Sizer Die 357-44 Bain & Davis
57025-357-44Bn&Dvs Seater Die-H Seater Die 357-44 Bain & Davis
57026-357-44Bn&Dvs Trim Die-H Trim Die 357-44 Bain & Davis
57033-357-44Bn&Dvs Exp Die-H Expander Die 357-44 Bain & Davis (SO)
58276 Case Forming Die Set 357-44 Bain & Davis from 44 Remington Magnum

Redding
80497 2-Die Set 357x44 Bain & Davis (SO)

CH4D

357-44Bai
40808 8 Shellholder

Pacific Tool and Gauge Reamer
.357-44 Bain-Davis  Finisher/Rougher/Resizer in HSS with solid pilot. Carbide and removable pilots available.



Current Loading Data:
 If you send an SASE to Bain & Davis Gunshop, they will send you four pages of loading data.
Bain and Davis Gun Shop
267 South San Gabriel Blvd
San Gabriel, CA 91776-1622

NOTE: Possibly dated? 5 Dec 2017

The only data that is from a manufacturer on this page is the extract from a Hornady Handbook (357/44 B&D), an extract from Speer #9 Handloading Manual (357 AMP), and Accurate (357/44 Bain & Davis). The powder charges in the articles are from the powder lots produced at that time. We all know that even old timers like Unique, Bullseye, Blue Dot... have undergone changes in density and formulation over the years. Do not assume that any of the maximum loads are safe to plug into your gun without working up from a starting load.

WARNING! -------------------------------------------------------------------------------- ////

THIS INFORMATION IS NOT GUARANTEED TO BE SUITABLE IN YOUR APPLICATION!

This information is presented AS-IS, I am NOT responsible for what you do with it!

Contact the powder manufacturer or Bain & Davis for approved loads.

WARNING! ------------------------------------------------------------------------------ ///


References - These articles are freely available on the internet or are available for sale on FleaBay / private sites. I bought most of these in researching the 357/44 Bain & Davis.

Articles:

Gun World Magazine
"More Powder = More Power", (25 degree variant) - Gun World, Jan 1964 by Dan Cotterman
Gun World article on 10 degree variant, (rifle) August, 1964 by
Dan Cotterman (?)
Gun World article on 10 degree variant, (pistol) September, 1964 by Dan Cotterman (?)
"The Merrill Sportsman in .357/44 Bain & Davis" - Gun World, Sep 1979, by Dean A. Grennell

American Reloaders Association (ARA) Bulletins
The 44/357 B&D In Rifles: An ARA Test Report, pg 7-8, ARA Bulletin Jun 1967 #46

44/357 B&D In Handguns, pg. 4, ARA Bulletin Aug 1967 #48
Pressure Data on the 44/357, pg 4-5, ARA Bulletin Feb 1969 #66 By Dean A. Grinnell

"357/44 Revolver Wildcat" - Shooting Times, Feb 1970 by Bob Steindler
"Wildcat Cartridge Packs Kick", - American Rifleman, Apr 1970 Bob Milek

Handloader Magazine
"Feeding the .44 Auto Mag" - Handloader #51, Sep 1974, by George Nonte (making 44 AMP brass)
"Loading the 357 Auto Mag" - Handloader #53, Jan 1975 by George Nonte
.357/44 Bain & Davis Loads for a T/C Encore - Handloader #296, June 2015 by Stan Trzoniec
"Alliant's Power Pro 300-MP" (Propellant Profile) - Handloader #264, Feb 2010, by R.H. VanDenburg, Jr.
"Magnum Revolver Loads with Alliant Power Pro 300-MP" - Handloader #274, Oct 2011, by Brian Pearce
"Alliant Power Pro 300-MP Loads" - Handloader #277, Apr 2012, by Brian Pearce


Guns & Ammo Magazine
Big Bore Handguns, - Guns and Ammo, 1977 ???
"The .357/.44 Dreadnaught", - Guns&Ammo, Oct 1977 by Dan Cotterman
"Bobcat .357/.44 Magnum",  - Guns&Ammo, Mar 1979, by Dr. Ralph C. Glanze

American Handgunner
".357/44 The Sensible Wildcat" - American Handgunner #78, Mar/Apr 1978, Massad Ayoob (Bobcat)

High performance, favorite loads for the wildcat .357/44 Bain & Davis, pg 44 - American Handgunner, Nov/Dec 1993 by John Taffin
High performance, favorite loads for the wildcat .357/44 Bain & Davis, pg 45 - American Handgunner, Nov/Dec 1993 by John Taffin

Big Blast For The .357, page 12-13, American Handgunner, May/June 1984 by Dan Cotterman

References:
357-44 Bain & Davis - Hornady Handbook of Cartridge Reloading (listed on Hornady's Obsolete Reloading Manual Data )
"357 Auto Mag" - Speer Reloading Manual Number Nine, second printing, 1975
"44 Auto Mag" - Speer Reloading Manual Number Nine, second printing, 1975
".357/44 BAIN & DAVIS" - Accurate Powder, Accurate Loading Guide #2
".357 Bain & Davis" by Lee Martin
357/44 Bain & Davis Website (Dead as of 28 Nov 2014)