Load Ballistics
Caliber: .45 Colt | Bullet: 250 gr XTP | Powder: Power Pistol |
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Powder Charge (gr): | Ruger Velocity (fps) | Ruger Group Size (25yd) | Ruger Group Size (50yd) | Ruger Group Size (100yd) | S&W Velocity (fps) | S&W Group Size (25yd) | S&W Group Size (50yd) | S&W Group Size (100yd) |
8.0 | 800 | 1.8 |
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| 742 |
| 6.25 |
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8.7 | 923 |
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9.0 | 928 | 1.8 | 4.6 |
| 878 |
| 2.25, 3.0 |
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Note: Power Pistol powder and 250XTP bullets gave the best group sizes at both 25 yd
and 50 yd, for both the Ruger Blackhawk and S&W Model 25, caliber .45 Colt.
Load: #884
Powder: 8.0 gr Power Pistol
Bullet: 250.0 gr Hornady HP/XTP452
Brass: Starline
Primer: Fed 150
Ruger Group: #866, Velocity: 800 fps, Count: 6, ES: 31, Group Size (in): 1.80, 6 shots @ 25.0 yds
Ruger Chronograph Velocities: 808,789,793,789,820,803
S&W Group: #917, Velocity: 742 fps, Count: 6, ES: 61, Group Size (in): 6.25, 6 shots @ 50.0 yds
S&W Chronograph Velocities: 726,776,756,754,722,715
Load: #849
Powder: 8.7 gr Power Pistol
Bullet: 250.0 gr Hornady HP/XTP452
Brass: Starline
Primer: Win WLP
Ruger Group: #835, Velocity: 923 fps, Count: 5, ES: 38, Group Size (in): -, 5 shots @ 25.0 yds
Ruger Chronograph Velocities: 920,938,931,928,900
Load: #858
Powder: 9.0 gr Power Pistol
Bullet: 250.0 gr Hornady HP/XTP452
Brass: Starline
Primer: Win WLP
Ruger Velocity: - fps, Count: - , ES: -
Ruger Group: #844, Velocity: 928 fps, Count: 4, ES: 15, Group Size (in): -, 4 shots @ 25.0 yds
Ruger Chronograph Velocities: 918,930,931,933
S&W Group: #804, Velocity: 878 fps, Count: 5, ES: 43, Group Size (in): -, 5 shots @ 25.0 yds
S&W Chronograph Velocities: 900,857,865,877,893
S&W Group: #934, Velocity: 865 fps, Count: 5, ES: 23, Group Size (in): 3.00, 6 shots @ 50.0 yds
S&W Chronograph Velocities: 866,851,868,874,867
Load: #881
Powder: 9.0 gr Power Pistol
Bullet: 250.0 gr Hornady HP/XTP452
Brass: Win
Primer: Fed 150
Ruger Group: #867, Velocity: 883 fps, Count: 5, ES: 46, Group Size (in): 1.80, 6 shots @ 25.0 yds
Ruger Chronograph Velocities: 856,864,896,897,902
Ruger Group: #889, Velocity: - fps, Count: -, ES: -, Group Size (in): 4.60, 6 shots @ 50.0 yds
S&W Group: #914, Velocity: 803 fps, Count: 3, ES: 56, Group Size (in): 2.25, 4 shots @ 50.0 yds
S&W Chronograph Velocities: 771,811,827
Note: 25 yd and 50 yd group sizes were good.
Calculated Ballistics Trajectory Table
Bullet: 250gr XTP, B.C.=0.146
Velocity ============== Distance yd (Energy ft-lb) =============
(fps) 0 25 50 75 100
700 -1 (272) 0 (261) -3.6 (250) -12.1 (239) -25.6 (229)
800 -1 (355) 0 (339) -2.6 (324) - 8.9 (310) -19.0 (297)
900 -1 (450) 0 (426) -1.8 (405) - 6.7 (386) -14.6 (368)
1000 -1 (555) 0 (519) -1.3 (488) - 5.1 (461) -11.6 (436)
1100 -1 (672) 0 (614) -1.0 (567) - 4.1 (529) - 9.5 (497)
1200 -1 (799) 0 (714) -0.7 (647) - 3.3 (594) - 7.9 (552)
Performance
Load: #849
Revolver: Smith & Wesson .45 Colt, Model 25
Rest: Mechanical Revolver Vise
Groups 25 yds: 1.75" (5 shots), 1.63" (5 shots)
Load: #849
Revolver: Smith & Wesson .45 Colt, Model 25
Rest: Mechanical Revolver Vise
Groups 50 yds: 4.5" (4 shots), 4.38" (4)
Load: #858
Revolver: Ruger .45 Colt, Blackhawk
Rest: Mechanical Revolver Vise
Groups 25 yds: 1.25" (5 shots minus #3 flyer), 2" (6 shots), 1.25" (4 shots minus flyer)
Load: #849
Revolver: Smith & Wesson .45 Colt, Model 25
Rest: Mechanical Revolver Vise
Groups 50 yds: 4.5" (4 shots), 4.38" (4)
Load: #858
Revolver: Ruger .45 Colt, Blackhawk
Rest: Mechanical Revolver Vise
Groups 25 yds: 1.25" (5 shots minus #3 flyer), 2" (6 shots), 1.25" (4 shots minus flyer)
