Reloader 26 in 6.5 creedmoor

[Canhunter35]

I have a 6.5 creedmoor with a 26" barrel. Been reading about the high velocities achieved with reloader 26. Claims as high as 3000 fps with 140s.
I'm like to hear more success stories and what your data is for it.
I'm also wondering how temp stable reloader 26 is?

 

[Hiwayman92]

It flat out works. 2700 fps in my 20" barrel with 143 ELD-x's. 1 hole at 100, 4" at 1016 yards today.

 

[codyadams]

I haven't loaded in 6.5 creed, but in my .260 AI it is simply outstanding. I was able to reach 3170 before max pressure with 140 vld's, and "settled" on 3090 with a load that is easy on brass.

But, the member "Bowfishn" from this site posted in the "Reloder 26" thread, and I'll quote his results. Keep in mind all the regular safety rules, this is his results in his gun with his equipment, always work up slowly and BE CAREFUL. Here is his post-

Ok I got a chance to get to the range today to check out a few loads using RL26 and Hornady 143 ELDX bullets in my 6.5 Creedmoor.
26" barrel Nosler brass BR2 Primers 2.890"OAL
I tested with a Magnetospeed installed. Three shot groups. gun)

46gr. 2872 fps average vel. ES 13 SD 6.5
46.5gr 2908 fps average vel. ES 6 SD 3
47gr 2939 fps average vel. ES 10 SD 5.5
47.5gr 2954 fps average vel. ES 11 SD 5.85
48gr 2999 fps average vel. ES 12 SD 6.6
48.5gr 3029 fps average vel. ES 13 SD 6.65
49gr 3054 fps average vel. ES 19 SD 9.6 *
*this load was compressed I had to use a drop tube to get all the powder in.

48grs had best group of .216"ctc 49gr was not too bad at .567"ctc
group average center was same point of impact between 47.5 gr. and 49 gr.
I am going to work on loads up and down from 48 gr. and try longer and shorter COAL.
No sign of pressure observed and when I popped the primers from the 48.5 and 49 gr loads they were just as tight as the lightest load.


-hope that helps out.

 

[codyadams]

As far as temp stability, I'll quote my post from the "Reloder 26" thread as well. I have heard of people getting good results until temps get over 85ish, then the velocities tend to go up quicker than normal, however, I have not seen this in the two rifles I have loaded in, but I also haven't thoroughly tested at these higher temps.

So I did a temperature test, I'll go over how I conducted it. I put 5 rounds in a zip lock bag in my freezer overnight, then on my way to the range I put the rounds in a bucket filled with ice, and put my kestrel inside so I had a temperature I could monitor and record. The other rounds were kept at room temperature in my house, then on my dashboard in my truck on the way to the range.

When I got to the range and set up my chronograph, I got my bucket of ice and pulled my kestrel out and looked at the temp, it registered 17° f, but by the time I thought to get my phone out and take a picture, it had warmed up to the 30's, as the ambient temp outside was in the high 60's. After this I put my kestrel in my ammo box with my room temp rounds.

First I shot the chilled rounds, pulling them out of the ice one at a time, and I shot them within about 3 seconds of chambering them, and recording velocity. Then after that, I let my barrel cool to room temp, then looked at the temp in my ammo box, which was 67 ° f. Then I shot those 5 rounds, and recorded velocity.

This was my load for all rounds fired in my .260 AI:

49.1 grains RL-26
Lapua Brass
CCI BR-2 primer
140 Berger VLD Seated .005 off lands

And these were my velocity results:

17° f -
1. 3051
2. 3046
3. 3056
4. 3066
5. 3055 AVG. 3054, E.S. 20 FPS

67° f -
1. 3060
2. 3059
3. 3055
4. 3058
5. 3063 AVG. 3059, E.S. 8 FPS

My lower temp loads would have had a 10 fps e.s. If it wasn't for the one that went 3066, and also would have averaged 3052 instead of 3054. But even at that...The velocity spread for 50° f difference was only 7 fps...so all my worries about temp sensativity are now dismissed, at least for this rifle.

 

[Canhunter35]

Thanks for all the info, I'm definitely gonna have to pick up a jug and try it. So for hunting temp it should be plenty stable. It's amazing people are getting performance to rifle a 6.5 gap out of a 6.5 creedmoor

 

[Creedmoor shooter]

I also tried rl-26 in my 26in criterion. I posted my results on the rl-26 thread but I'll post them again. I didn't achieve the velocity bowfishin did but still impressive nevertheless. I settled on 48 grains with a 140 hornady eld-match at 2945. I ran up to 49 grains which yielded 3014 fps. 49 grains was halfway up the neck in my hornady brass. I shot the 48 grain load at 1000 last week with great results. It shot just as well as My tried and true load of 42 grains of rl-17 at 2880. My 5 shot group with 48 grains was in the .3s and a 3 shot group with 49 grains was also .3s.

 

[DocDoc]

Remember the problem with RL-26 seems to be at higher temperatures, in the 80's Fahrenheit and above.

 

[Bowfishn]

Even though my loads showed no sign of pressure according to QL my load that reached 3054 with the 143 ELD-X was over pressure.
My loads that reached 3000 were well within SAAMI specs. and were the best for accuracy. I am using HBN now so I use around 48.5 gr of my Lot# of RL26 to achieve 3000 fps with the 143. I also have tested the 147 ELD-M and have a good accuracy node at 2930 fps, it is well within pressure , the 147 is flatter because of it's higher BC.
Using the G7 BC at 2930 fps sighted in at 100 yards my ballistics calculator shows I can shoot a mile with a turret adjustment of 67.3" and it stays sonic till 1660 yards.
http://www.longrangehunting.com/threads/reloder-26.172482/page-15
"48 grains of RL26 , BR2 primers Nosler Brass 52.7gr H2O HBN coated bullets. 2.890" gave the best group at 100 yards and lowest SD. .300" ctc with 5 shots and SD of 5, this was at an average velocity of 2930 fps."
Remember start low work up slowly watch for any pressure signs, use a chronograph or something for checking velocity, this will tell you if you are getting close on pressure.

 

[Canhunter35]

I'm excited to try some 147 eldm and reloader 26. When that bullet first came out I thought long to achieve a velocity worth using, but if i find a node near 2900 fps, that will be awesome.

How do you know you are getting close to max pressure by the chrony? Because of reaching 3k fps?

 

[Bowfishn]

OK here is a load shown from data entered in QL using Hornady Brass, a COAL of 2.840" , 26" Barrel and Default setting for RL26.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 46.800 grain H2O = 3.039 cm³
Cartridge O.A.L. L6: 2.840 inch = 72.14 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.053% 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

-10.5 92 42.50 2551 2124 37856 9320 98.8 1.567
-09.5 93 43.00 2584 2179 39307 9403 99.1 1.540
-08.4 94 43.50 2616 2233 40822 9478 99.4 1.513
-07.4 95 44.00 2648 2289 42403 9546 99.6 1.487
-06.3 96 44.50 2680 2344 44054 9607 99.8 1.461
-05.3 97 45.00 2712 2400 45766 9661 99.9 1.435
-04.2 98 45.50 2744 2457 47581 9707 100.0 1.410
-03.2 99 46.00 2775 2514 49467 9746 100.0 1.386
-02.1 100 46.50 2807 2572 51437 9779 100.0 1.362
-01.1 101 47.00 2838 2629 53500 9811 100.0 1.338
+00.0 102 47.50 2869 2687 55661 9842 100.0 1.315 ! Near Maximum !
+01.1 103 48.00 2901 2746 57923 9872 100.0 1.292 ! Near Maximum !
+02.1 105 48.50 2931 2805 60296 9900 100.0 1.270 ! Near Maximum !
+03.2 106 49.00 2962 2864 62783 9928 100.0 1.248 !DANGEROUS LOAD-DO NOT USE!
+04.2 107 49.50 2993 2924 65394 9954 100.0 1.227 !DANGEROUS LOAD-DO NOT USE!
+05.3 108 50.00 3024 2984 68134 9980 100.0 1.206 !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 102 47.50 2997 2931 70873 9358 100.0 1.204 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 47.50 2671 2328 43401 10165 97.4 1.463


Here is the Data from my Lot# of RL26, 26" Barrel, COAL of 2.890" and HBN coating

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333, Friction Proofed
Useable Case Capaci: 46.687 grain H2O = 3.031 cm³
Cartridge O.A.L. L6: 2.890 inch = 73.41 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.053% 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

-10.5 92 42.50 2577 2167 37950 9376 99.7 1.550
-09.5 93 43.00 2610 2224 39568 9434 99.9 1.521
-08.4 94 43.50 2644 2281 41257 9484 100.0 1.493
-07.4 95 44.00 2677 2338 43026 9525 100.0 1.465
-06.3 96 44.50 2709 2396 44874 9560 100.0 1.438
-05.3 97 45.00 2742 2453 46808 9593 100.0 1.411
-04.2 98 45.50 2774 2511 48833 9626 100.0 1.386
-03.2 99 46.00 2806 2570 50954 9657 100.0 1.360
-02.1 101 46.50 2838 2628 53176 9688 100.0 1.336
-01.1 102 47.00 2869 2687 55505 9718 100.0 1.311 ! Near Maximum !
+00.0 103 47.50 2901 2746 57948 9747 100.0 1.288 ! Near Maximum !
+01.1 104 48.00 2932 2806 60512 9775 100.0 1.265 ! Near Maximum !
+02.1 105 48.50 2963 2866 63203 9801 100.0 1.242 !DANGEROUS LOAD-DO NOT USE!
+03.2 106 49.00 2994 2926 66031 9827 100.0 1.220 !DANGEROUS LOAD-DO NOT USE!
+04.2 107 49.50 3025 2987 69000 9851 100.0 1.198 !DANGEROUS LOAD-DO NOT USE!
+05.3 108 50.00 3056 3048 72110 9875 100.0 1.177 !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 103 47.50 3019 2974 74498 9292 100.0 1.178 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 47.50 2713 2403 44151 10276 99.0 1.438

Seating depth, case capacity, coated or non coated as well as BA on your lot of powder will change the velocity and pressure.
If velocity is up over 2950 fps than most likely pressures are over as well, if it is close to 2900 - 2930 fps it should be alright. If you are using Lapua brass which has a lower case capacity than pressures will be higher for the same velocity.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 44.795 grain H2O = 2.908 cm³
Cartridge O.A.L. L6: 2.840 inch = 72.14 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.064% 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

-10.6 95 42.00 2653 2297 44213 9041 100.0 1.459
-09.6 96 42.50 2685 2353 46028 9082 100.0 1.432
-08.5 97 43.00 2717 2409 47928 9120 100.0 1.407
-07.4 98 43.50 2748 2466 49915 9156 100.0 1.381
-06.4 99 44.00 2780 2523 52004 9192 100.0 1.357
-05.3 100 44.50 2811 2580 54189 9226 100.0 1.332 ! Near Maximum !
-04.3 101 45.00 2843 2637 56483 9260 100.0 1.309 ! Near Maximum !
-03.2 103 45.50 2874 2696 58890 9292 100.0 1.286 ! Near Maximum !
-02.1 104 46.00 2905 2754 61416 9323 100.0 1.263 ! Near Maximum !
-01.1 105 46.50 2936 2813 64071 9353 100.0 1.241 !DANGEROUS LOAD-DO NOT USE!
+00.0 106 47.00 2966 2872 66863 9382 100.0 1.219 !DANGEROUS LOAD-DO NOT USE!
+01.1 107 47.50 2997 2932 69799 9409 100.0 1.197 !DANGEROUS LOAD-DO NOT USE!
+02.1 108 48.00 3028 2992 72882 9435 100.0 1.176 !DANGEROUS LOAD-DO NOT USE!
+03.2 109 48.50 3058 3053 76150 9460 100.0 1.156 !DANGEROUS LOAD-DO NOT USE!
+04.3 110 49.00 3089 3114 79575 9483 100.0 1.135 !DANGEROUS LOAD-DO NOT USE!
+05.3 112 49.50 3119 3176 83169 9505 100.0 1.116 !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 106 47.00 3073 3083 84941 8960 100.0 1.123 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 47.00 2797 2554 51582 9960 99.6 1.350

If you jam the lands pressure will also go up even though you are using a longer COAL. Start low watch closely for signs including velocity as most times pressure signs will not show up until you get above 70K.

 

[Canhunter35]

Thanks for all the great info, bowfishn

 

[coop2564]

Bowfishn any chance you could post up QL data for 143gr ELDx, 22", hornady case, LR primer would like to see velocities it shows for 22". I finally found some RL26 plan to load some up next weekend.

OK here is a load shown from data entered in QL using Hornady Brass, a COAL of 2.840" , 26" Barrel and Default setting for RL26.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 46.800 grain H2O = 3.039 cm³
Cartridge O.A.L. L6: 2.840 inch = 72.14 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.053% 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

-10.5 92 42.50 2551 2124 37856 9320 98.8 1.567
-09.5 93 43.00 2584 2179 39307 9403 99.1 1.540
-08.4 94 43.50 2616 2233 40822 9478 99.4 1.513
-07.4 95 44.00 2648 2289 42403 9546 99.6 1.487
-06.3 96 44.50 2680 2344 44054 9607 99.8 1.461
-05.3 97 45.00 2712 2400 45766 9661 99.9 1.435
-04.2 98 45.50 2744 2457 47581 9707 100.0 1.410
-03.2 99 46.00 2775 2514 49467 9746 100.0 1.386
-02.1 100 46.50 2807 2572 51437 9779 100.0 1.362
-01.1 101 47.00 2838 2629 53500 9811 100.0 1.338
+00.0 102 47.50 2869 2687 55661 9842 100.0 1.315 ! Near Maximum !
+01.1 103 48.00 2901 2746 57923 9872 100.0 1.292 ! Near Maximum !
+02.1 105 48.50 2931 2805 60296 9900 100.0 1.270 ! Near Maximum !
+03.2 106 49.00 2962 2864 62783 9928 100.0 1.248 !DANGEROUS LOAD-DO NOT USE!
+04.2 107 49.50 2993 2924 65394 9954 100.0 1.227 !DANGEROUS LOAD-DO NOT USE!
+05.3 108 50.00 3024 2984 68134 9980 100.0 1.206 !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 102 47.50 2997 2931 70873 9358 100.0 1.204 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 47.50 2671 2328 43401 10165 97.4 1.463


Here is the Data from my Lot# of RL26, 26" Barrel, COAL of 2.890" and HBN coating

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333, Friction Proofed
Useable Case Capaci: 46.687 grain H2O = 3.031 cm³
Cartridge O.A.L. L6: 2.890 inch = 73.41 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.053% 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

-10.5 92 42.50 2577 2167 37950 9376 99.7 1.550
-09.5 93 43.00 2610 2224 39568 9434 99.9 1.521
-08.4 94 43.50 2644 2281 41257 9484 100.0 1.493
-07.4 95 44.00 2677 2338 43026 9525 100.0 1.465
-06.3 96 44.50 2709 2396 44874 9560 100.0 1.438
-05.3 97 45.00 2742 2453 46808 9593 100.0 1.411
-04.2 98 45.50 2774 2511 48833 9626 100.0 1.386
-03.2 99 46.00 2806 2570 50954 9657 100.0 1.360
-02.1 101 46.50 2838 2628 53176 9688 100.0 1.336
-01.1 102 47.00 2869 2687 55505 9718 100.0 1.311 ! Near Maximum !
+00.0 103 47.50 2901 2746 57948 9747 100.0 1.288 ! Near Maximum !
+01.1 104 48.00 2932 2806 60512 9775 100.0 1.265 ! Near Maximum !
+02.1 105 48.50 2963 2866 63203 9801 100.0 1.242 !DANGEROUS LOAD-DO NOT USE!
+03.2 106 49.00 2994 2926 66031 9827 100.0 1.220 !DANGEROUS LOAD-DO NOT USE!
+04.2 107 49.50 3025 2987 69000 9851 100.0 1.198 !DANGEROUS LOAD-DO NOT USE!
+05.3 108 50.00 3056 3048 72110 9875 100.0 1.177 !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 103 47.50 3019 2974 74498 9292 100.0 1.178 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 47.50 2713 2403 44151 10276 99.0 1.438

Seating depth, case capacity, coated or non coated as well as BA on your lot of powder will change the velocity and pressure.
If velocity is up over 2950 fps than most likely pressures are over as well, if it is close to 2900 - 2930 fps it should be alright. If you are using Lapua brass which has a lower case capacity than pressures will be higher for the same velocity.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 44.795 grain H2O = 2.908 cm³
Cartridge O.A.L. L6: 2.840 inch = 72.14 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.064% 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

-10.6 95 42.00 2653 2297 44213 9041 100.0 1.459
-09.6 96 42.50 2685 2353 46028 9082 100.0 1.432
-08.5 97 43.00 2717 2409 47928 9120 100.0 1.407
-07.4 98 43.50 2748 2466 49915 9156 100.0 1.381
-06.4 99 44.00 2780 2523 52004 9192 100.0 1.357
-05.3 100 44.50 2811 2580 54189 9226 100.0 1.332 ! Near Maximum !
-04.3 101 45.00 2843 2637 56483 9260 100.0 1.309 ! Near Maximum !
-03.2 103 45.50 2874 2696 58890 9292 100.0 1.286 ! Near Maximum !
-02.1 104 46.00 2905 2754 61416 9323 100.0 1.263 ! Near Maximum !
-01.1 105 46.50 2936 2813 64071 9353 100.0 1.241 !DANGEROUS LOAD-DO NOT USE!
+00.0 106 47.00 2966 2872 66863 9382 100.0 1.219 !DANGEROUS LOAD-DO NOT USE!
+01.1 107 47.50 2997 2932 69799 9409 100.0 1.197 !DANGEROUS LOAD-DO NOT USE!
+02.1 108 48.00 3028 2992 72882 9435 100.0 1.176 !DANGEROUS LOAD-DO NOT USE!
+03.2 109 48.50 3058 3053 76150 9460 100.0 1.156 !DANGEROUS LOAD-DO NOT USE!
+04.3 110 49.00 3089 3114 79575 9483 100.0 1.135 !DANGEROUS LOAD-DO NOT USE!
+05.3 112 49.50 3119 3176 83169 9505 100.0 1.116 !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 106 47.00 3073 3083 84941 8960 100.0 1.123 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 47.00 2797 2554 51582 9960 99.6 1.350

If you jam the lands pressure will also go up even though you are using a longer COAL. Start low watch closely for signs including velocity as most times pressure signs will not show up until you get above 70K.

 

[Creedmoor shooter]

Bowfishn any chance you could post up QL data for 143gr ELDx, 22", hornady case, LR primer would like to see velocities it shows for 22". I finally found some RL26 plan to load some up next weekend.

For what it's worth, we shot rl-26 in my dad's 22in with the 140 eld-m and from what I remember it was right around 2900 or a hair over. I dont remember the charge we ran

 

[Bowfishn]

Bowfishn any chance you could post up QL data for 143gr ELDx, 22", hornady case, LR primer would like to see velocities it shows for 22". I finally found some RL26 plan to load some up next weekend.

Ok this is based off of the default values for RL26 in QL. Your lot number may give different results, use a means of checking velocities to determine if you are over pressure as well as work up slowly and watch for signs of pressure. Remember the pressure follows the velocity in the chart. 63,091 psi is CIP pressure the 49 gr load is just under CIP, they list it as dangerous because it does not take much of a change to put it over.

COAL is 2.800" if loaded to longer it may reduce pressures 2.840" allows for up to 49.3 grains of RL26 velocity of 2892 fps @ 62,333 psi, if it is not jamming the lands. With other info we can be more specific, so let us know your actual velocity obtained with loads.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 143, Hornady ELD-X 2635
Useable Case Capaci: 46.280 grain H2O = 3.005 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-26

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.064% 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

-10.6 92 42.00 2428 1872 36240 10983 96.5 1.444
-09.6 93 42.50 2461 1924 37633 11121 97.0 1.420
-08.5 94 43.00 2495 1976 39086 11252 97.5 1.394
-07.4 95 43.50 2528 2029 40604 11374 98.0 1.369
-06.4 96 44.00 2562 2083 42190 11489 98.4 1.344
-05.3 97 44.50 2595 2138 43846 11596 98.8 1.320
-04.3 98 45.00 2628 2193 45578 11695 99.1 1.296
-03.2 99 45.50 2662 2249 47389 11784 99.3 1.273
-02.1 100 46.00 2695 2306 49285 11865 99.6 1.249
-01.1 101 46.50 2728 2363 51268 11936 99.8 1.227
+00.0 102 47.00 2761 2421 53341 11997 99.9 1.205
+01.1 104 47.50 2794 2479 55523 12049 100.0 1.183 ! Near Maximum !
+02.1 105 48.00 2827 2538 57807 12091 100.0 1.161 ! Near Maximum !
+03.2 106 48.50 2860 2597 60201 12126 100.0 1.140 ! Near Maximum !
+04.3 107 49.00 2893 2657 62714 12158 100.0 1.120 !DANGEROUS LOAD-DO NOT USE!
+05.3 108 49.50 2925 2717 65357 12190 100.0 1.099 !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 102 47.00 2907 2684 67876 11400 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 47.00 2543 2053 41750 11896 94.4 1.345