QL 22-250 AI request
- Thread starter frankm
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 36,917
- 5,105
Code:
Cartridge : .22-250 Ackley Imp.
Bullet : .224, 80, Berger VLD G7 #22422
Useable Case Capaci: 43.658 grain H2O = 2.835 cm³
Cartridge O.A.L. L6: 2.565 inch = 65.15 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-26
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 91 39.24 2956 1552 38977 12092 97.3 1.346
-09.0 92 39.68 2994 1592 40426 12221 97.7 1.323
-08.0 93 40.11 3031 1632 41934 12341 98.2 1.300
-07.0 94 40.55 3069 1673 43505 12454 98.6 1.278
-06.0 95 40.98 3106 1714 45143 12557 98.9 1.256
-05.0 96 41.42 3144 1756 46851 12652 99.2 1.234
-04.0 97 41.86 3181 1797 48634 12738 99.5 1.213
-03.0 98 42.29 3218 1840 50494 12814 99.7 1.192 ! Near Maximum !
-02.0 99 42.73 3255 1882 52435 12881 99.8 1.172 ! Near Maximum !
-01.0 100 43.16 3292 1925 54463 12938 99.9 1.152 ! Near Maximum !
+00.0 101 43.60 3329 1969 56582 12985 100.0 1.132 ! Near Maximum !
+01.0 102 44.04 3366 2012 58797 13022 100.0 1.113 !DANGEROUS LOAD-DO NOT USE!
+02.0 103 44.47 3402 2056 61113 13055 100.0 1.094 !DANGEROUS LOAD-DO NOT USE!
+03.0 104 44.91 3438 2100 63535 13087 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 45.34 3474 2144 66071 13117 100.0 1.057 !DANGEROUS LOAD-DO NOT USE!
+05.0 106 45.78 3510 2189 68725 13146 100.0 1.039 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 101 43.60 3499 2174 71884 12385 100.0 1.030 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 43.60 3074 1678 43947 12973 95.4 1.265
Code:
Cartridge : .22-250 Ackley Imp.
Bullet : .224, 80, Berger VLD G7 #22422
Useable Case Capaci: 43.658 grain H2O = 2.835 cm³
Cartridge O.A.L. L6: 2.565 inch = 65.15 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 90 34.56 2880 1474 41508 10374 98.2 1.330
-09.0 91 34.94 2911 1505 42837 10471 98.5 1.310
-08.0 92 35.33 2941 1536 44208 10564 98.7 1.291
-07.0 93 35.71 2971 1568 45620 10652 99.0 1.272
-06.0 94 36.10 3001 1600 47076 10736 99.2 1.254
-05.0 95 36.48 3031 1632 48576 10816 99.4 1.236
-04.0 96 36.86 3061 1665 50122 10890 99.6 1.218 ! Near Maximum !
-03.0 97 37.25 3091 1697 51717 10960 99.7 1.200 ! Near Maximum !
-02.0 98 37.63 3121 1730 53360 11025 99.8 1.183 ! Near Maximum !
-01.0 99 38.02 3150 1763 55055 11085 99.9 1.166 ! Near Maximum !
+00.0 100 38.40 3180 1796 56802 11140 100.0 1.149 ! Near Maximum !
+01.0 101 38.78 3209 1829 58605 11190 100.0 1.133 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 39.17 3238 1862 60464 11235 100.0 1.117 !DANGEROUS LOAD-DO NOT USE!
+03.0 103 39.55 3267 1896 62382 11278 100.0 1.102 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 39.94 3295 1929 64360 11320 100.0 1.086 !DANGEROUS LOAD-DO NOT USE!
+05.0 105 40.32 3324 1963 66402 11362 100.0 1.071 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 38.40 3303 1938 67828 10718 100.0 1.065 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 38.40 2997 1596 45944 11205 96.7 1.263- Thread starter
- #3
thatguySHM
Beginner
- Feb 11, 2017
- 249
- 2
I shoot the 75gr ELD-M in mine, and using RL23 I'm shooting a very consistent 3370 fps and single digit SDs. Its a great little round. I tried some 80s but liked the higher velocities of the 75s.
Sent from my SM-G960U using Tapatalk
Sent from my SM-G960U using Tapatalk
- Thread starter
- #5
Most the guys that I shoot with also favor 75 s. I have 500 or so VLD s left thus my desire to burn those.
In head to head comparison with pretty much identical velocities the 80 shot 1 to 1.5 MOA flatter at 1140 yds. Stated BC actually favors 75 slightly. Guess that's why you verify actual drops and don't rely only on calc s. Granted 75 can be pushed faster but none the less interesting test!
In head to head comparison with pretty much identical velocities the 80 shot 1 to 1.5 MOA flatter at 1140 yds. Stated BC actually favors 75 slightly. Guess that's why you verify actual drops and don't rely only on calc s. Granted 75 can be pushed faster but none the less interesting test!
