Need some advice

[JD338]

Mark,

You are there. That's a big bull Nilgai.
Best of luck to you.

JD338

 

[TackDriver284]

Mark,

You are there. That's a big bull Nilgai.
Best of luck to you.

JD338

Thanks JD, he is beautiful.

 

[D21ALASKA]

Very interested to hear your experience with the ELDX on a heavy boned animal like that. I've been thinking about it for a couple different cartridges but have heard mixed reviews. Best of luck on the hunt. I hear the Nilgai are delicious.

 

[RL338]

That rifle just likes to shoot.
Maybe RL26 is the secret

 

[TackDriver284]

That rifle just likes to shoot.
Maybe RL26 is the secret

Oh no, the cat is out of the bag now.

 

[TackDriver284]

Very interested to hear your experience with the ELDX on a heavy boned animal like that. I've been thinking about it for a couple different cartridges but have heard mixed reviews. Best of luck on the hunt. I hear the Nilgai are delicious.

I'll keep you all posted on the 200 ELD-X performance. I did also hear mixed reviews of the bullet being too soft, but one way to find out.
Yes, the nilgai tastes great and a bit lean. I have harvested about 8 to 9 in the past with the 7 Mag and 7 STW using the 150 Partition and the 150 Swift Siroccos, neat entry and exits through the creases behind both shoulders, just a little dash and some tracking up to 50 -70 yards. A few was neck shots at 100 yards / DRT plus a couple of head on chest shots with a friend's 338 Lapua and 250 GameKings. That sucker hits hard, one DRT and one buckled and made a 100 yard dash and dropped. They are tough beasts.

 

[jimbires]

Jim, finally had time today to test these. These are the average velocities. Wind was variable left to right around 12-15. Settled on 75.6 grains to load up. Just a click or two to zero it. Hopefully harvest a nilgai soon. A buddy sent me a pic of some nilgai at his place, and said this one is waiting for me.
75.0 grains - 3,040 fps
75.3 grains - 3057 fps
75.6 grains- 3,082 fps

the way it's shooting , and no pressure signs , I'd use it .

I did a little twisting , and turning , I can get the 75.0 , and the 75.3 pretty close , but the 75.6 I just can't bring it in with the other two . after running through this , I'm sticking with 75.8 being a max load in your rifle .

charge ....................chrony FPS ....................................Q-load FPS .................................PSI
75.0 .........................3040 ....................................................3042 ........................................59716
75.3 ..........................3057 ....................................................3054 ........................................60513
75.6 ..........................3082.......................................................3065........................................61358
75.8 .........................N/A .......................................................3075 .....................................61915


Cartridge : .300 Win. Mag.(@)
Bullet : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 79.483 grain H2O = 5.161 cm³
Cartridge O.A.L. L6: 3.420 inch = 86.87 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 *C ?, Temperature: 75 °F

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0 76 60.00 2452 2669 30609 10223 97.7 1.681
-18.0 78 61.50 2513 2804 32669 10476 98.4 1.639
-16.0 80 63.00 2573 2941 34881 10708 99.0 1.597
-14.0 82 64.50 2634 3081 37258 10915 99.5 1.556
-12.0 84 66.00 2694 3223 39814 11098 99.8 1.516
-10.0 86 67.50 2754 3368 42566 11255 100.0 1.476
-08.0 88 69.00 2813 3514 45529 11386 100.0 1.438
-06.0 90 70.50 2872 3663 48725 11509 100.0 1.397
-04.0 91 72.00 2930 3813 52154 11629 100.0 1.354
-02.0 93 73.50 2988 3964 55809 11746 100.0 1.313 ! Near Maximum !
+00.0 95 75.00 3045 4118 59716 11859 100.0 1.273 ! Near Maximum !
+02.0 97 76.50 3102 4273 63909 11967 100.0 1.235 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 78.00 3159 4430 68414 12072 100.0 1.198 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 79.50 3215 4590 73258 12172 100.0 1.162 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 81.00 3271 4752 78474 12268 100.0 1.128 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 82.50 3327 4917 84098 12359 100.0 1.095 !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 95 75.00 3160 4434 74092 11398 100.0 1.171 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 75.00 2867 3649 46268 12422 99.3 1.409



Cartridge : .300 Win. Mag.(@)
Bullet : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 79.483 grain H2O = 5.161 cm³
Cartridge O.A.L. L6: 3.420 inch = 86.87 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 *C ?, Temperature: 75 °F

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0 76 60.24 2461 2691 30930 10265 97.8 1.674
-18.0 78 61.75 2523 2826 33021 10516 98.5 1.632
-16.0 80 63.25 2583 2964 35269 10744 99.1 1.590
-14.0 82 64.76 2644 3105 37684 10949 99.6 1.549
-12.0 84 66.26 2705 3248 40284 11128 99.9 1.509
-10.0 86 67.77 2764 3394 43082 11280 100.0 1.469
-08.0 88 69.28 2824 3542 46099 11409 100.0 1.431
-06.0 90 70.78 2883 3691 49352 11532 100.0 1.388
-04.0 92 72.29 2941 3841 52838 11652 100.0 1.346
-02.0 94 73.79 2999 3994 56553 11768 100.0 1.305 ! Near Maximum !
+00.0 96 75.30 3056 4149 60531 11881 100.0 1.265 ! Near Maximum !
+02.0 98 76.81 3113 4305 64802 11989 100.0 1.227 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 78.31 3170 4464 69393 12093 100.0 1.191 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 79.82 3227 4624 74332 12193 100.0 1.155 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 81.32 3283 4787 79653 12288 100.0 1.121 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 82.83 3340 4953 85394 12378 100.0 1.088 !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 96 75.30 3170 4464 75085 11421 100.0 1.164 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 75.30 2879 3681 46881 12457 99.4 1.402


Cartridge : .300 Win. Mag.(@)
Bullet : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 79.483 grain H2O = 5.161 cm³
Cartridge O.A.L. L6: 3.420 inch = 86.87 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 *C ?, Temperature: 75 °F

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0 77 60.48 2471 2712 31253 10306 97.9 1.668
-18.0 79 61.99 2533 2848 33377 10555 98.6 1.625
-16.0 81 63.50 2594 2987 35661 10780 99.2 1.583
-14.0 83 65.02 2655 3129 38116 10981 99.6 1.542
-12.0 84 66.53 2715 3274 40759 11156 99.9 1.502
-10.0 86 68.04 2775 3420 43607 11304 100.0 1.462
-08.0 88 69.55 2835 3569 46677 11432 100.0 1.424
-06.0 90 71.06 2894 3719 49988 11555 100.0 1.381
-04.0 92 72.58 2952 3871 53530 11675 100.0 1.338 ! Near Maximum !
-02.0 94 74.09 3010 4024 57308 11791 100.0 1.297 ! Near Maximum !
+00.0 96 75.60 3068 4180 61358 11903 100.0 1.258 ! Near Maximum !
+02.0 98 77.11 3125 4337 65708 12011 100.0 1.220 !DANGEROUS LOAD-DO NOT USE!
+04.0 100 78.62 3182 4497 70386 12114 100.0 1.183 !DANGEROUS LOAD-DO NOT USE!
+06.0 102 80.14 3239 4659 75423 12213 100.0 1.148 !DANGEROUS LOAD-DO NOT USE!
+08.0 104 81.65 3295 4823 80851 12308 100.0 1.114 !DANGEROUS LOAD-DO NOT USE!
+10.0 106 83.16 3352 4990 86712 12397 100.0 1.081 !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 96 75.60 3181 4494 76091 11444 100.0 1.158 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 75.60 2892 3713 47504 12492 99.5 1.394

 

[jimbires]

Cartridge : .300 Win. Mag.(@)
Bullet : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 79.483 grain H2O = 5.161 cm³
Cartridge O.A.L. L6: 3.420 inch = 86.87 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 *C ?, Temperature: 75 °F

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0 77 60.64 2478 2726 31471 10334 98.0 1.663
-18.0 79 62.16 2539 2863 33618 10580 98.7 1.620
-16.0 81 63.67 2600 3003 35924 10804 99.3 1.578
-14.0 83 65.19 2661 3146 38407 11003 99.7 1.537
-12.0 85 66.70 2722 3291 41080 11175 99.9 1.497
-10.0 87 68.22 2782 3438 43960 11320 100.0 1.458
-08.0 89 69.74 2842 3587 47067 11447 100.0 1.419
-06.0 90 71.25 2901 3738 50417 11570 100.0 1.375
-04.0 92 72.77 2960 3890 53996 11690 100.0 1.333 ! Near Maximum !
-02.0 94 74.28 3018 4044 57817 11805 100.0 1.292 ! Near Maximum !
+00.0 96 75.80 3075 4200 61915 11917 100.0 1.253 !DANGEROUS LOAD-DO NOT USE!
+02.0 98 77.32 3133 4358 66320 12025 100.0 1.215 !DANGEROUS LOAD-DO NOT USE!
+04.0 100 78.83 3190 4519 71057 12128 100.0 1.178 !DANGEROUS LOAD-DO NOT USE!
+06.0 102 80.35 3247 4681 76159 12227 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+08.0 104 81.86 3304 4847 81661 12321 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+10.0 106 83.38 3360 5014 87603 12410 100.0 1.076 !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 96 75.80 3188 4514 76770 11459 100.0 1.153 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 75.80 2900 3735 47925 12514 99.5 1.389

 

[TackDriver284]

Thanks Jim for checking, I compared it to my QL, seems very close with .4 weighing factor, there was a very slight difference in "usable case capacity" between yours and mine. Your was 79.48 and mine was 78.834, not sure why,,,are you using 92.290 H20? Just curious.
And yes, the ball park is around 75.6 grains. My QL max shows 61,387 psi and yours shows 61,358 psi. I would stick to this load. I'll keep an eye on velocity if temps changes from 75 degrees to 90 degrees in the summer. Powder temp sensitivity estimations shows RL26 fps / degree as .5 fps per degree, hope its close.

 

[jimbires]

Mark , yes I used 92.29 water capacity . for brass , I used " 300 win mag @ " . the default capacity was 92.20 on this brass is why I chose it . I only had to change the last digit from a 0 to a 9 .