6.5 creedmoor quickload request please

M

Michael C. Smith

Beginner
May 24, 2016
220
1
120 bt
Nosler brass 52.2 water capacity
Fed 210
H4350 45 grains. Nosler book max
My coal is 2.875
I got a avg. Velocity 2953 fps
22 in barrel.

2 bullets through the same hole and pulled the 3rd shoot down about half inch. Would like to see if I am close with velocity and where the psi might be.
Thank you
Michael.

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Looks like you are borderline at max pressure. Velocity was off, so I adjusted Ba to your chrono speed. As long as there is no heavy bolt lift or pressure signs, you are good to go. (y) 2nd screen is a blowup view of QL data. I set air temp at 70 degrees. Just watch temp as it heats up, pressure may spike a little.

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 120, Nosler BalTip 26120
Useable Case Capaci: 48.702 grain H2O = 3.162 cm³
Cartridge O.A.L. L6: 2.875 inch = 73.03 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4350 ?, Temperature: 70 °F

Code: 
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   92    40.50   2672    1902   46017   9885     95.9    1.209
-09.0   93    40.95   2700    1943   47474   9993     96.3    1.191
-08.0   94    41.40   2728    1983   48978  10099     96.7    1.174
-07.0   95    41.85   2757    2025   50528  10202     97.0    1.157
-06.0   96    42.30   2785    2066   52128  10302     97.4    1.141
-05.0   97    42.75   2813    2108   53778  10398     97.7    1.125  ! Near Maximum !
-04.0   98    43.20   2841    2151   55480  10491     98.0    1.109  ! Near Maximum !
-03.0   99    43.65   2869    2193   57237  10580     98.2    1.093  ! Near Maximum !
-02.0  100    44.10   2897    2236   59050  10666     98.5    1.078  ! Near Maximum !
-01.0  101    44.55   2925    2280   60922  10749     98.7    1.063  ! Near Maximum !
+00.0  102    45.00   2953    2323   62855  10827     99.0    1.048  !DANGEROUS LOAD-DO NOT USE!
+01.0  103    45.45   2981    2367   64851  10901     99.2    1.033  !DANGEROUS LOAD-DO NOT USE!
+02.0  105    45.90   3008    2412   66913  10972     99.3    1.019  !DANGEROUS LOAD-DO NOT USE!
+03.0  106    46.35   3036    2456   69043  11038     99.5    1.005  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    46.80   3064    2501   71244  11101     99.6    0.991  !DANGEROUS LOAD-DO NOT USE!
+05.0  108    47.25   3091    2546   73519  11158     99.7    0.978  !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    45.00   3070    2511   73757  10540    100.0    0.979  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    45.00   2791    2076   52146  10624     94.1    1.138

6px8qP4.jpg
 
Thank you Tackdriver. On that load where should my node be? I am still unsure on what I am looking at there. Looks like there is one at 42.7 with a obt of 1.125. Which would be node 4 at 1.0126 is that right? Then where would be my next one?

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Some where between 44 and 44.5 looks good on velocity and psi. Don't think I want to keep it up there at 45 that's going to be to hot to shoot down here in the summer. It's 81deg here today when I shot it. Is there a node from 43.5 up to 44.5

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Went back and looked at my brass good and I am seeing slight ejector marks on that 45grain load. So I am going to have to back down some.
If I could find something in between 44 and 44.5 I could still be at 2900. Is there a close node right around there?
 
I redid the QL according to your 80 degree temp. Node#4 is 1.0126 which is 46.1 grains ( too high ), Node #5 is 1.1270 which is 42.7 grains and Node #6 is 1.2018 which is 40.7 grains ( slow node ). See OBT sheet below. If you are shooting great like you mentioned then I would leave it as is. Try a 5 shot group to confirm.


Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 120, Nosler BalTip 26120
Useable Case Capaci: 48.698 grain H2O = 3.162 cm³
Cartridge O.A.L. L6: 2.875 inch = 73.03 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4350 ?, Temperature: 80 °F

Code: 
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   92    40.50   2672    1902   46024   9884     95.9    1.208
-09.0   93    40.95   2700    1943   47482   9993     96.3    1.191
-08.0   94    41.40   2728    1984   48986  10099     96.7    1.174
-07.0   95    41.85   2757    2025   50537  10202     97.0    1.157
-06.0   96    42.30   2785    2066   52136  10302     97.4    1.141
-05.0   97    42.75   2813    2108   53787  10398     97.7    1.125  ! Near Maximum !
-04.0   98    43.20   2841    2151   55490  10491     98.0    1.109  ! Near Maximum !
-03.0   99    43.65   2869    2193   57247  10580     98.2    1.093  ! Near Maximum !
-02.0  100    44.10   2897    2236   59061  10666     98.5    1.078  ! Near Maximum !
-01.0  101    44.55   2925    2280   60933  10748     98.7    1.063  ! Near Maximum !
+00.0  102    45.00   2953    2323   62867  10827     99.0    1.048  !DANGEROUS LOAD-DO NOT USE!
+01.0  103    45.45   2981    2367   64863  10901     99.2    1.033  !DANGEROUS LOAD-DO NOT USE!
+02.0  105    45.90   3009    2412   66925  10972     99.3    1.019  !DANGEROUS LOAD-DO NOT USE!
+03.0  106    46.35   3036    2456   69056  11038     99.5    1.005  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    46.80   3064    2501   71258  11100     99.6    0.991  !DANGEROUS LOAD-DO NOT USE!
+05.0  108    47.25   3091    2546   73534  11158     99.7    0.978  !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    45.00   3070    2511   73771  10540    100.0    0.979  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    45.00   2792    2077   52155  10624     94.1    1.138

kSey3Jd.png
 
If you're just running on chrono reading it seems the 6.5 nodes are around 2810-40, 2920 or so and up around 3010-3050.
Just what I've found from playing with a few of them.
TDs nodes were right on fwiw but thought maybe speeds would help
 
44 grains did good! Should be right at 2900 fps. Think I will stay with this load and shoot it some. It should do really good on our Alabama whitetail! That 120 bt should do the job! Thanks to everyone that helped!
912c7e674cefbb84a9b932ae8a08e057.jpg


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Thank you. I was pleased with it. It may do better from the bench. This was from the hood of a truck with sand bags.

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Went back out today to try the 130 gamekings. Haven't measured it yet but I think it's the best group I have ever shot! 42g h4350
Coal 2.675.

Think I will load some more of them. Need to run them across the chrony. Max is 42.9 @2800 sierra doesn't show barrel length. I am guessing I should be around 2730 maybe.
3bd7d74ae5ca48a1a5f28aaaf0c03aca.jpg


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20fda9455c1ebd0ff167b77c7f4664b4.jpg
 
That's another that should work excellent on deer and similar sized animals. No experience with them but I hear the HPBT Gamekings are very good hunting Bullets.
 
SJB358":evitnshk said:
That's another that should work excellent on deer and similar sized animals. No experience with them but I hear the HPBT Gamekings are very good hunting Bullets.
Click to expand...
I hope they will. Going to load some more up and verify speed and accuracy again. Then get some range time with them.

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