TC338
Well-Known Member
Anyone know a good starting point for this load combo? Berger has some info with their 135g Classic Hunter. Velocity looked impressive with the Berger data.
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R-26 and 143 eld-x in 6.5 creedmoor
- Thread starter TC338
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Creedmoor shooter
Well-Known Member
There's info on this over in the rl-26 thread if you care to check it out. I used the 140 eld-m and started at 46 and topped out at 49. Powder at that point was halfway up the neck of my Hornady brass which was going to hold more than my norma brass.
http://www.longrangehunting.com/threads/reloder-26.172482/page-6 Post #83
This was my testing with 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.
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
Although the 48.5 and 49 grain load showed no pressure signs, according to the velocity Quick Loads shows them as over pressure.
48.5gr 3029 fps average vel. ES 13 SD 6.65 (QL 66,678 psi)
49gr 3054 fps average vel. ES 19 SD 9.6 (QL 69,485 psi)
You may want to start lower than 46 maybe 44 or 45 depending on case and oal you go with, and watch velocity closely I will list QL values for Hornady case and average COAL with 24" barrel bellow for you, as a reference. Also note that I am also listing it with the default values for RL26. Note the velocity and compare it to the velocity on chart as that will be your pressure line.
Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 143, Hornady ELD-X 2635 G7
Useable Case Capaci: 46.285 grain H2O = 3.005 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 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 0.961% 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
-09.6 95 43.39 2580 2113 40242 10298 98.5 1.441
-08.7 96 43.85 2610 2164 41688 10385 98.9 1.417
-07.7 97 44.31 2641 2215 43194 10464 99.1 1.393
-06.7 98 44.77 2672 2266 44762 10538 99.4 1.370
-05.8 99 45.23 2702 2319 46396 10604 99.6 1.348
-04.8 100 45.69 2733 2371 48099 10663 99.8 1.325
-03.8 101 46.15 2763 2424 49874 10715 99.9 1.304
-02.9 102 46.62 2793 2478 51728 10760 100.0 1.282
-01.9 103 47.08 2824 2531 53663 10797 100.0 1.261 ! Near Maximum !
-01.0 104 47.54 2854 2586 55683 10828 100.0 1.240 ! Near Maximum !
+00.0 105 48.00 2884 2640 57792 10856 100.0 1.220 ! Near Maximum !
+01.0 106 48.46 2913 2695 59999 10883 100.0 1.200 ! Near Maximum !
+01.9 107 48.92 2943 2750 62303 10910 100.0 1.180 ! Near Maximum !
+02.9 108 49.38 2973 2806 64718 10935 100.0 1.161 !DANGEROUS LOAD-DO NOT USE!
+03.8 109 49.85 3002 2862 67240 10958 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!
+04.8 110 50.31 3032 2918 69891 10981 100.0 1.123 !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 105 48.00 3018 2893 73665 10311 100.0 1.115 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 48.00 2674 2271 45067 11097 96.6 1.359
Start low work up slowly, if you gave me more info on your setup I would run the numbers for you, Case brand and H2O capacity, COAL as well as your barrel length. Lot to lot powder variation can only be told by velocity obtained. Velocity is also affected by chamber (H2O will allow for adjustment) and tight(higher vel) or loose (slower vel) barrel.
Last edited:
TC338
Well-Known Member
I am asking about the 143 eldx. Sorry for the confusion.
TC338
Well-Known Member
Thanks for the information!!! This gives me a starting point to work up from. My components are hornady brass, fed gold medal match primers and r-26 obviously. Rifle is a savage 10-t with a 24" 5-R barrel. Not sure on coal yet. Haven't gotten to check yet. If this gun is like the other savages I've worked with I won't be much over standard length.
Hiwayman92
Well-Known Member
I worked a ladder from 46-48 grains in my 20" CTR. Velocity was 75-100 fps better than H4350 with the 143 eld-x. Very low SD and 46.6 and 46.9 grains group less that 1/4 minute at 2630fps or so.
I'm working on RL26 with 200 ELD-X's in my 300 WSM. So far I'm at a .7 group, ES of 7, 2900 fps in a 24" barrel M70. I need to play with seating depth to see if I can make this better. RL26 is magic in my CM, 300 WSM, and 7RM.
I'm working on RL26 with 200 ELD-X's in my 300 WSM. So far I'm at a .7 group, ES of 7, 2900 fps in a 24" barrel M70. I need to play with seating depth to see if I can make this better. RL26 is magic in my CM, 300 WSM, and 7RM.
Hiwayman92
Well-Known Member
cschol
Member
I'm shooting the same rifle and working up the same load, plus 140 ELD-M. I'll post up what I get.
I did a four shot ladder today with RL26 and 140 VLD out of a 22 Inch barrel.
My normal load is 41.5 H4350 that does 2688 fps
47 went 2880
47.5 went 2908
48 went 2951
48.5 went 2951
shot these over the Magneto speed then did 3 shots each.
48 shot the best at about .75 MOA all primers looked normal and they all ejected just fine with normal bolt lift.
H4350 shoots .5 or better but if I wanted some serious speed for a special occasion RL26 would be a consideration.
My normal load is 41.5 H4350 that does 2688 fps
47 went 2880
47.5 went 2908
48 went 2951
48.5 went 2951
shot these over the Magneto speed then did 3 shots each.
48 shot the best at about .75 MOA all primers looked normal and they all ejected just fine with normal bolt lift.
H4350 shoots .5 or better but if I wanted some serious speed for a special occasion RL26 would be a consideration.
