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DWF Supporters
April 9, 2015
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http://www.alliantpowder.com/products/powder/power_pro_300.aspx
I have enjoyed reloading with Alliant's Power-Pro 300-MP in both .357 Mag and .44 Mag so I figured I would give it a try in the .357 Maximum/Super Mag cartridge. Â
So Here is the data for those that are interested. Â at 21.5 grains cases were just starting to get a little sticky.
Set: 59 Created: 06/29/15 11:18 AM Description: dan Wesson 357 super mag 10" barrel Notes 1: 21.5 gr mp-300 CCI 550 SPM Rem brass Notes 2: 180 gr Hornady XTP 1.8925" oal Distance to Chrono(FT): 10.00 Ballistic Coefficient: 1.000 Bullet Weight(gr): 180.00 Temp: 72 °F BP: 29.94 inHg Shots: # FPS / FT-LBS 5 1490 / 887 4 1546 / 955 3 1576 / 993 2 1594 / 1016 1 1532 / 938 Average: 1547.6 FPS SD: 40.4 FPS Min: 1490 FPS Max: 1594 FPS Spread: 104 FPS True MV: 1549 FPS *Primers were fine but the cases were a little sticky -------------------------------------------- Set: 58 Created: 06/29/15 11:15 AM Description: dan Wesson 357 super mag 10" barrel Notes 1: 21 gr mp-300 CCI 550 SPM Rem brass Notes 2: 180 gr Hornady XTP 1.8925" oal Distance to Chrono(FT): 10.00 Ballistic Coefficient: 1.000 Bullet Weight(gr): 180.00 Temp: N/A °F BP: N/A inHg Shots: # FPS / FT-LBS 5 1557 / 969 4 1566 / 980 3 1481 / 877 2 1521 / 925 1 1546 / 955 Average: 1534.2 FPS SD: 34.2 FPS Min: 1481 FPS Max: 1566 FPS Spread: 85 FPS True MV: 1535 FPS *No Pressure signs, all good -------------------------------------------- Set: 57 Created: 06/29/15 11:13 AM Description: dan Wesson 357 super mag 10" barrel Notes 1: 20 gr mp-300 CCI 550 SPM Rem brass Notes 2: 180 gr Hornady XTP 1.8925" oal Distance to Chrono(FT): 10.00 Ballistic Coefficient: 1.000 Bullet Weight(gr): 180.00 Temp: 70 °F BP: 29.95 inHg Shots: # FPS / FT-LBS 5 1481 / 877 4 1450 / 840 3 1448 / 838 2 1455 / 846 1 1411 / 796 Average: 1449.0 FPS SD: 25.0 FPS Min: 1411 FPS Max: 1481 FPS Spread: 70 FPS True MV: 1450 FPS No pressure signs primers and cases are fine. -------------------------------------------- Set: 56 Created: 06/29/15 11:10 AM Description: dan Wesson 357 super mag 10" barrel Notes 1: 19 gr mp-300 CCI 550 SPM Rem brass Notes 2: 180 gr Hornady XTP 1.8925" oal Distance to Chrono(FT): 10.00 Ballistic Coefficient: 1.000 Bullet Weight(gr): 180.00 Temp: 70 °F BP: 29.95 inHg Shots: # FPS / FT-LBS 5 1417 / 803 4 1398 / 781 3 1412 / 797 2 1368 / 748 1 1388 / 770 Average: 1396.6 FPS SD: 19.7 FPS Min: 1368 FPS Max: 1417 FPS Spread: 49 FPS True MV: 1398 FPS -------------------------------------------- Set: 55 Created: 06/29/15 11:08 AM Description: dan Wesson 357 super mag 10" barrel Notes 1: 19 gr mp-300 CCI 550 SPM Jamison Notes 2: 180 gr Hornady XTP 1.8925" oal Distance to Chrono(FT): 10.00 Ballistic Coefficient: 1.000 Bullet Weight(gr): 180.00 Temp: 70 °F BP: 29.95 inHg Shots: # FPS / FT-LBS 5 1308 / 684 4 1291 / 666 3 1249 / 624 2 1347 / 725 1 1355 / 734 Average: 1310.0 FPS SD: 43.2 FPS Min: 1249 FPS Max: 1355 FPS Spread: 106 FPS True MV: 1311 FPS
âWe cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.â
-Henry David Thoreau
âWhen some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes â remembering that it was
one of the best parts of my education â *make* them hunters.â
-Henry David Thoreau
Â
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January 24, 2009
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This is good info, thanks for taking the time to gather & post this data!
DWF Supporters
April 9, 2015
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I have some 170 grain and some 180 grain DAN WESSON Blue Box ammo I am going to shoot and get some data for as well. Â Then on to IMR4227 and AA1680. Â Then maybe experiment with some others like Lil Gun have read about Lil' Gun burning so hot it can erode the forcing cone so I am a little reluctant to go Lil' Gun.
âWe cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.â
-Henry David Thoreau
âWhen some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes â remembering that it was
one of the best parts of my education â *make* them hunters.â
-Henry David Thoreau
Â
Â
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