Which one ?

chad

Well-Known Member
Joined
Jun 28, 2011
Messages
462
Location
Layton Utah
I'll keep it if I can get it to shoot like the rl26 load. I would like the ql the feller was talking about earlier. Just want to make sure it's safe.
 

chad

Well-Known Member
Joined
Jun 28, 2011
Messages
462
Location
Layton Utah
I think my velocities are great! I'll shoot this load if it's safe. That would put an end to my suffering and disappointment on the cartridge.
 

chad

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Joined
Jun 28, 2011
Messages
462
Location
Layton Utah
Don't remember my over all length but with the hornady bullet bullet comparator gauge on my calipers it measures 2.816"
 

MR.SWIFT

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Joined
Nov 23, 2008
Messages
202
Broz if you are looking to unload that ss barrel and setup i would be interested. thanks terry
 

jfseaman

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Joined
Apr 8, 2012
Messages
4,171
Location
California Central Coast
can someone run a ql for me?

280AI
24" barrel
210 fed m primer
rl 26 powder with 63.5 grains
coal is 3.495"
QL is not perfect and there would still be a lot of adjustments if it were my own but....

Cartridge : .280 Ack Imp
Bullet : .284, 150, Nosler Accubond LR 58734 G7
Useable Case Capaci: 67.917 grain H2O = 4.410 cm³
Cartridge O.A.L. L6: 3.495 inch = 88.77 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 1.575% 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

-15.8 79 53.50 2451 2000 28920 10930 93.8 1.591
-14.2 81 54.50 2501 2084 30477 11189 94.9 1.560
-12.6 82 55.50 2552 2169 32129 11435 95.8 1.529
-11.0 84 56.50 2603 2256 33876 11667 96.7 1.498
-09.5 85 57.50 2654 2345 35727 11884 97.4 1.469
-07.9 87 58.50 2704 2436 37690 12085 98.1 1.436
-06.3 88 59.50 2755 2528 39772 12269 98.7 1.400
-04.7 90 60.50 2806 2622 41981 12435 99.1 1.364
-03.2 91 61.50 2856 2717 44328 12583 99.5 1.330
-01.6 93 62.50 2906 2813 46821 12711 99.8 1.296
+00.0 94 63.50 2956 2911 49470 12818 99.9 1.264
+01.6 96 64.50 3006 3009 52291 12905 100.0 1.232
+03.2 97 65.50 3055 3108 55294 12977 100.0 1.201 ! Near Maximum !
+04.7 99 66.50 3103 3208 58494 13047 100.0 1.171 ! Near Maximum !
+06.3 100 67.50 3152 3309 61898 13114 100.0 1.142 ! Near Maximum !
+07.9 102 68.50 3200 3411 65498 13178 100.0 1.114 !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 94 63.50 3110 3222 62572 12249 100.0 1.150 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 63.50 2727 2478 38522 12699 94.9 1.412

If you have no shiny spots, primers are still "rounded" etc...
I would believe you are good.

No one can say for sure as it's up to you but all indications are ok.
 

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