Win. 473 powder

[beng]

Has anyone used 473 powder for a 158swc in the 38spl / 357 pistols? They did some time back, but I do not have any old books. Thanks beng

[MakeMineA10mm]

I had the Ninth and Twelfth Edition of the Winchester guidebooklet handy, and neither shows loads for 473. The 12th showed them for 452, so maybe someone with a Tenth or Eleventh handy (or if I can dig mine out from wherever they've gone) can help.

473 is a medium-burning powder as pistol powders go. You could probably work off another powder's data. SR-7625 would probably be close, but let me keep digging for you.

[BerdanIII]

I'll see what I can dig up.....

[Rick459]

from speer reloading manual #11
.38 spec 473AA lead
max 4.8
min 4.4
.357 mag 473AA JHP
max 5.8 +p loads
min 5.2 +p loads
HTH
Rick

[beng]

Thanks Rick459. I knew someone had to have some old books, I was going to start at 5.0 gr and go from there. beng

[BerdanIII]

WINCHESTER 473AA DATA
Speer No.11

.32 H&R Magnum - Federal cases - CCI 500
100-gr Plinker - 4.4 to 4.9 grs - 931 to 981 fps
98-gr HBWC - 2.5 to 2.7 - 771 to 806 fps

.32-20 WCF - Winchester cases - CCI 500
100-gr Plinker - 8.8 to 9.7 - 1582 to 1668 fps
110-gr Varminter - 8.1 to 8.9 - 1454 to 1539 fps
110-gr Spire point, Round nose - 8.1 to 8.9 - 1438 to 1488 fps
130-gr HP, Flat Nose - 7.4 to 8.2 - 1272 to 1353 fps

9mm Parabellum (9x19mm) - Winchester cases - CCI 500
88-gr HP - 6.7 to 7.1 - 1256 to 1339 fps
95-gr TMJ - 5.8 to 6.5 - 1139 to 1227 fps
110-gr HP - 6.1 to 6.8 - 1146 to 1270 fps
125-gr SP - 5.1 to 5.7 - 1012 to 1094 fps
125-gr RN - 3.9 to 4.4 - 877 to 980 fps

.38 Special - Speer cases, CCI 500
148-gr BBWC - 4.3 to 4.9 - 867 to 933 fps
158-gr SWC, RN, SWCHP - 4.4 to 4.8 - 762 to 864 fps
110-gr HP - 5.8 to 6.5 - 997 to 1098 fps +P load
140-gr HP - 5.4 to 6.3 - 884 to 986 fps +P load
146-gr HP, 150-gr TMJ - 5.3 to 6.2 - 892 to 1004 fps +P load
158-gr HP, SP - 5.2 to 5.8 - 837 to 918 fps +P load

.357 Magnum - Speer cases, CCI 500
140-gr HP - 8.8 to 9.8 - 1151 to 1239
158-gr HP, SP - 8.3 to 8.8 - 1092 to 1136 fps
160-gr SP - 7.9 to 8.9 - 1101 to 1180 fps

.41 Magnum - Winchester cases - CCI 300
220-gr SP - 9.0 to 10.0 - 1040 to 1068 fps

.44 Magnum - Speer cases, CCI 300
240-gr. SWC - 6.5 to 7.5 - 833 to 919 fps
200-gr Magnum HP - 14.8 to 15.8 - 1340 to 1392 fps
240-gr SP, TMJ, Magnum HP and SP - 13.0 to 14.0 - 1210 to 1225 fps

.45 Auto - Speer cases, CCI 300
200-gr SWC - 4.6 to 5.1 - 730 to 797 fps
230-gr RN - 5.9 to 6.4 - 850 to 896 fps
185 TMJ Match - 5.0 to 5.5 - 725 to 804 fps
200-gr HP - 6.2 to 6.8 - 879 to 938 fps
230-gr TMJ - 6.0 to 6.5 - 795 to 847 fps
260-gr HP - 5.1 to 6.1 - 741 to 803 fps

.45 Colt - FOR CONTENDER, RUGER BLACKHAWK ONLY -
200-gr HP - 10.0 to 11.5 - 1059 to 1172 fps
225-gr HP - 10.3 to 11.3 - 1013 to 1106 fps
260-gr HP - 9.6 to 10.1 - 935 to 982 fps

From: Handloader's Digest, 12 Ed., You Can Do a Lot With Shotgun Powders, D. Zutz
"It doesn't perform well in spacious rifle cartridges or deliver in handgun cases. A guess is that 473AA will be dropped as Winchester's new line of Improved Ball Powders comes on line."