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April 9, 2015
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I got to get some range time today being that my hunting season basically ended during archery. So I decided to take out the DW Model 40 .357 Super Mag with the newly loaded Star-Line Brass and 18 grains of IMR 4227 and 180 grain bullets some Hornady XTP others were Penn Bullets Hard Cast Lead. I also shot a 20 pack of the 158 grain Jamison Factory Ammo. Here is the Chrono Data- I used CCI Small rifle primers in my reloads.
VERY Interesting that the Lead Cast bullets were about 100 fps faster than the Hornady XTPs . I have not yet cleaned the gun it will be interested to see if leading is an issue.
I shot a few groups of each type of bullet at 25 yards and accuracy seemed excellent in all three, with a slight edge to the lead cast bullets- I wear Bifocals and was shooting open sights. The elevation accuracy was excellent with the windage accuracy moving a good bit. I would ABSOLUTELY attribute this to shooter error as I am certain I am able to keep my elevation sight picture clearer than my windage sight picture.
Enjoy the Data.
Set: 6
Created: 12/03/16 11:02 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: Jamison Factory Ammo
Notes 2: 158 grain HP
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 158.00
Temp: 44 °F
BP: 30.17 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1454 741.82 229.73
5 1411 698.60 222.94
4 1465 753.09 231.47
3 1455 742.85 229.89
2 1485 773.79 234.63
1 1470 758.24 232.26
Average: 1456.7 FPS
SD: 25.1 FPS
Min: 1411 FPS
Max: 1485 FPS
Spread: 74 FPS
Shot/sec: 0.2
True MV: 1458 FPS
Group Size (in): 0.00
--------------------------------------------
Set: 5
Created: 12/03/16 11:00 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: Jamison Factory Ammo
Notes 2: 158 grain HP
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 158.00
Temp: 44 °F
BP: 30.17 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1447 734.70 228.63
5 1471 759.27 232.42
4 1478 766.52 233.52
3 1473 761.34 232.73
2 1449 736.73 228.94
1 1438 725.59 227.20
Average: 1459.3 FPS
SD: 16.6 FPS
Min: 1438 FPS
Max: 1478 FPS
Spread: 40 FPS
Shot/sec: 0.3
True MV: 1460 FPS
Group Size (in): 0.00
--------------------------------------------
Set: 4
Created: 12/03/16 10:58 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: IMR 4227 18 grain CCI# 400 SRP
Notes 2: 180 gr Penn Lead Cast star line
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 180.00
Temp: 44 °F
BP: 30.14 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1392 774.58 250.56
5 1430 817.45 257.40
4 1426 812.88 256.68
3 1405 789.12 252.90
2 1381 762.39 248.58
1 1374 754.68 247.32
Average: 1401.3 FPS
SD: 23.2 FPS
Min: 1374 FPS
Max: 1430 FPS
Spread: 56 FPS
Shot/sec: 0.2
True MV: 1402 FPS
Group Size (in): 0.00
--------------------------------------------
Set: 3
Created: 12/03/16 10:56 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: IMR 4227 18 grain CCI #400 SRP
Notes 2: 180 gr Hornady XTP star line
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 180.00
Temp: 44 °F
BP: 30.14 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1322 698.64 237.96
5 1300 675.58 234.00
4 1296 671.43 233.28
3 1292 667.29 232.56
2 1330 707.12 239.40
1 1304 679.74 234.72
Average: 1307.3 FPS
SD: 15.2 FPS
Min: 1292 FPS
Max: 1330 FPS
Spread: 38 FPS
Shot/sec: 0.2
True MV: 1308 FPS
Group Size (in): 0.00
--------------------------------------------
Set: 2
Created: 12/03/16 10:45 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: IMR 4227 18 grain CCI #400 SRP
Notes 2: 180 gr Penn LeadCast Star line
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 180.00
Temp: 44 °F
BP: 30.14 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1450 840.47 261.00
5 1421 807.19 255.78
4 1417 802.65 255.06
3 1394 776.81 250.92
2 1407 791.36 253.26
1 1395 777.92 251.10
Average: 1414.0 FPS
SD: 20.8 FPS
Min: 1394 FPS
Max: 1450 FPS
Spread: 56 FPS
Shot/sec: 0.2
True MV: 1415 FPS
Group Size (in): 0.00
--------------------------------------------
Set: 1
Created: 12/03/16 10:42 AM
Description: Dan Wesson 40 357 Super Mag 8"
Notes 1: IMR 4227 18 grain SRP
Notes 2: 180 gr Horndsy XTP star line
Distance to Chrono(FT): 10.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 180.00
Temp: 44 °F
BP: 30.14 inHg
Altitude: 0.00
# FPS FT-LBS PF
6 1287 662.13 231.66
5 1301 676.62 234.18
4 1280 654.95 230.40
3 1291 666.26 232.38
2 1311 687.06 235.98
1 1337 714.58 240.66
Average: 1301.2 FPS
SD: 20.7 FPS
Min: 1280 FPS
Max: 1337 FPS
Spread: 57 FPS
Shot/sec: 0.2
True MV: 1302 FPS
Group Size (in): 0.00
“We cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.”
-Henry David Thoreau
“When some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes – remembering that it was
one of the best parts of my education – *make* them hunters.”
-Henry David Thoreau
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