Winchester 571 Powder

[Capt Bruce]

I inherited a brand new 8lb can of 571 and would like to find some loads to use it with. I understand it is the same as HS-7 also. I shoot 45acp, 40s&w,357mag, 380acp. and 12ga Trap and Skeet. Anyone have some info or sources?
thanks

[BerdanIII]

I looked in my sources and the only mention (Handloader's Digest, ca. 1974) I found was that 571 was (is) a relatively slow-burning powder developed for magnum 12-gauge loads. Speer manuals of that time don't show it as a handgun propellent in their load tables in any calibers, but according to the burn rate chart in H.D., it is near Blue Dot and HS-7. I would think that 571 is way too slow for any of your handgun calibers except possibly the .357 Magnum, and even then I'd expect unburned powder and some really impressive muzzle flash. This powder might work with heavier bullets and longer (10 inches or more) barrels, but that's just my opinion.

There were a couple of loads for the 12-gauge in the article. Do you want them?

[airdale]

I posted some info about Win. 571 up on the Hunting and Fishing board.

http://forums.gunboards.com/showthread.php?t=91527

[BerdanIII]

Me and my big mouth…. I found this data in the 15th edition of the Winchester Reloader's Manual (1997) while looking for something else.

Load data for Winchester 571 - Win. cases, primers, and bullets.

Caliber Bullet Charge Vel. Psi
.38 Special
158 LSWC 6.7 795 13300
7.4 875 16000
.38 Special +P
140 JHP 7.4 785 14600
8.0 890 17300
158 JHP 6.6 700 14100
7.3 800 17400
158 LSWC 7.7 910 17300

.40 S&W
150 JHP 9.5 1130 27200
10.4 1230 33200
155 JHP 8.5 1020 24700
10.0 1180 33200
170 JHP 7.6 900 22500
8.8 1080 33200
170 Lead 7.0 900 24100
8.4 1070 33200
180 JHP 6.8 830 23200
7.8 950 29500
8.3 1015 33200
200 FMJ 6.6 790 26000
7.5 910 33200
200 Lead 5.0 740 20600
6.5 900 33200
.45 ACP
185 JHP 10.3 935 16800
11.3 1045 19400
200 LSWC 8.5 835 15300
9.5 945 19500
200 FPJ 9.2 850 15600
10.2 960 19900
200 JHP 9.0 860 16600
9.8 945 20000
230 LRN 7.7 800 15900
8.7 890 19800
230 JHP 8.4 795 18400
8.9 845 19900

No loads were shown for the .357 Magnum or for the 230-gr. FMJ in .45 ACP.

12-gauge loads, 2.75" Winchester hull, compression-formed

Shot Primer Charge Wad Vel. LUP
1 3/8 Fed 209A 32.0 WAA12R 1215 11000 psi
1 3/8 Win 209 36.0 WAA12F114 1285 10300
1 3/8 Fed 209 35.5 WAA12R 1285 10500
1 3/8 Fed 209 35.5 Rem RP12 1285 10100
1 ½ Win 209 36.5 WAA12R 1260 10300
1 ½ Win 209 36.5 Rem RP12 1260 9800
1 ½ CCI 109 35.5 WAA12R 1260 10500

12 gauge loads, 3" Winchester hull, compression-formed

1 5/8 Win 209 36.0 WAA12R 1205 10500
1 5/8 Win 209 36.0 Rem R12H 1205 10100
1 7/8 Win 209 33.0 WAA12R 1100 10500
1 7/8 Win 209 34.0 Rem RP12 1100 10100

Hope this helps.

OK, How do I get this thing to print tables?

[Big-D]

I inherited a brand new 8lb can of 571 and would like to find some loads to use it with. I understand it is the same as HS-7 also. I shoot 45acp, 40s&w,357mag, 380acp. and 12ga Trap and Skeet. Anyone have some info or sources?
thanks

I'm looking for some 571 powder. Would you sell me some? D a n