6.5 creedmoor 125 nosler partiton

[Idahotrophyhunter]

I built a 25" 1/9" twist heavy barrel 6.5 creedmoor for varmints/deer/antelope. The factory hornady 120 sst shoot great but for the deer/antelope part I want to shoot 125 nosler partitions. Does anyone have any suggestions on were to start for reloading this bullet?

 

[DrMike]

Do you have a powder in mind?

Here's some suggestions:

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 125, Nosler PART SP 16320
Useable Case Capaci: 49.483 grain H2O = 3.213 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 25.0 inch = 635.0 mm
Powder : Alliant Reloder-17

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 74 35.20 2448 1664 31520 8016 95.8 1.538
-18.0 75 36.08 2505 1741 33526 8229 96.7 1.502
-16.0 77 36.96 2561 1820 35652 8430 97.5 1.466
-14.0 79 37.84 2616 1900 37910 8618 98.1 1.428
-12.0 81 38.72 2672 1982 40306 8792 98.7 1.388
-10.0 83 39.60 2727 2064 42852 8952 99.2 1.349
-08.0 85 40.48 2782 2148 45555 9097 99.5 1.312
-06.0 86 41.36 2836 2233 48429 9226 99.8 1.276
-04.0 88 42.24 2890 2318 51485 9339 100.0 1.241 ! Near Maximum !
-02.0 90 43.12 2943 2404 54736 9434 100.0 1.208 ! Near Maximum !
+00.0 92 44.00 2996 2491 58201 9521 100.0 1.176 ! Near Maximum !
+02.0 94 44.88 3048 2579 61893 9605 100.0 1.144 !DANGEROUS LOAD-DO NOT USE!
+04.0 96 45.76 3100 2667 65829 9687 100.0 1.115 !DANGEROUS LOAD-DO NOT USE!
+06.0 97 46.64 3151 2756 70030 9766 100.0 1.086 !DANGEROUS LOAD-DO NOT USE!
+08.0 99 47.52 3202 2845 74516 9842 100.0 1.058 !DANGEROUS LOAD-DO NOT USE!
+10.0 101 48.40 3252 2936 79317 9915 100.0 1.031 !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 92 44.00 3097 2662 69348 9171 100.0 1.098 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 92 44.00 2843 2244 48090 9735 98.0 1.277

Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 125, Nosler PART SP 16320
Useable Case Capaci: 49.483 grain H2O = 3.213 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 25.0 inch = 635.0 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 52666 psi, or 363 MPa

or a maximum loading ratio or filling of 110 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

9 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 103.5 49.3 3.19 2995 98.2 52667 10905 1.228 ! Near Maximum !
Vihtavuori N560 104.9 48.9 3.17 2969 94.8 52667 10878 1.228 ! Near Maximum !
Accurate MAGPRO 105.6 51.2 3.32 2958 93.0 52667 10878 1.233 ! Near Maximum !
Alliant Reloder-22 105.3 48.6 3.15 2958 96.9 52667 10600 1.232 ! Near Maximum !
Bofors RP5/NP ~approximation 105.3 48.6 3.15 2958 96.9 52667 10600 1.232 ! Near Maximum !
Raufoss RA15 105.3 48.6 3.15 2958 96.9 52667 10600 1.232 ! Near Maximum !
Winchester WXR 108.1 48.8 3.16 2956 96.7 52667 10601 1.233 ! Near Maximum !
Ramshot Magnum (Big Boy) 107.5 52.5 3.40 2954 95.5 52667 10764 1.223 ! Near Maximum !
SNPE Vectan SP 12 107.8 52.5 3.40 2953 95.6 52667 10744 1.223 ! Near Maximum !
PB Clermont PCL 517 107.9 52.5 3.40 2953 95.5 52667 10753 1.223 ! Near Maximum !
IMR 7828 109.1 48.4 3.13 2944 95.1 52667 10511 1.224 ! Near Maximum !
IMR 7828 SSC 103.2 48.4 3.13 2944 95.1 52667 10511 1.224 ! Near Maximum !
Somchem S365 99.3 45.0 2.92 2932 100.0 52667 9296 1.243 ! Near Maximum !
ADI AR 2213 104.0 47.9 3.11 2927 94.9 52667 10380 1.224 ! Near Maximum !
Ramshot Hunter 96.9 45.7 2.96 2914 98.9 52667 9869 1.240 ! Near Maximum !
Rottweil R905 106.3 48.1 3.12 2914 94.7 52667 10184 1.236 ! Near Maximum !
Alliant Reloder-19 101.3 46.2 3.00 2907 96.7 52667 10018 1.235 ! Near Maximum !
ADI AP 2214 108.0 51.1 3.31 2906 94.8 52667 10257 1.225 ! Near Maximum !
Winchester 760 91.4 44.1 2.86 2905 98.2 52667 9829 1.245 ! Near Maximum !
Hodgdon H414 91.4 44.1 2.86 2905 98.2 52667 9829 1.245 ! Near Maximum !
ADI AR 2209 100.7 45.7 2.96 2904 96.5 52667 9940 1.229 ! Near Maximum !
Bofors RP14 ~approximation 102.1 46.6 3.02 2900 96.7 52667 9944 1.236 ! Near Maximum !
Norma URP 96.3 43.5 2.82 2898 99.7 52667 9520 1.249 ! Near Maximum !
Bofors RP19 ~approximation 96.4 43.5 2.82 2897 99.7 52667 9518 1.249 ! Near Maximum !
Accurate 4350 100.3 43.8 2.84 2897 99.8 52667 9539 1.267 ! Near Maximum !
Vihtavuori N550 93.4 43.5 2.82 2895 99.6 52667 9616 1.255 ! Near Maximum !
Bofors RP5 NT ~approximation 107.3 49.9 3.24 2882 92.2 52667 10075 1.231 ! Near Maximum !
IMR 4831 101.2 44.2 2.86 2881 99.8 52667 9333 1.258 ! Near Maximum !
Raufoss RA4 99.1 45.2 2.93 2881 96.4 52667 9728 1.238 ! Near Maximum !
Bofors RP4 ~approximation 99.1 45.2 2.93 2881 96.4 52667 9728 1.238 ! Near Maximum !
Norma 204 96.0 45.2 2.93 2881 96.4 52667 9728 1.238 ! Near Maximum !
Somchem S385 101.7 46.9 3.04 2875 97.6 52667 9654 1.257 ! Near Maximum !
Hodgdon H4831 106.7 47.3 3.06 2871 94.2 52667 9746 1.235 ! Near Maximum !
Hodgdon H4831 SC 102.5 47.3 3.06 2871 94.2 52667 9746 1.235 ! Near Maximum !
Hodgdon Hybrid 100V 102.5 43.7 2.83 2867 100.0 52667 8802 1.246 ! Near Maximum !
Bofors RP4 NT ~approximation 96.7 44.8 2.90 2863 97.9 52667 9470 1.252 ! Near Maximum !
Winchester Supreme 780 100.2 48.2 3.12 2861 96.5 52667 9527 1.240 ! Near Maximum !
Vihtavuori N165 107.2 48.4 3.13 2860 97.2 52667 9408 1.245 ! Near Maximum !
Lovex S070 95.6 43.1 2.80 2846 98.3 52667 9303 1.264 ! Near Maximum !
Rottweil R904 99.6 44.8 2.90 2843 95.2 52667 9401 1.244 ! Near Maximum !
Rottweil R903 91.0 41.1 2.66 2842 100.0 52667 8760 1.274 ! Near Maximum !
Somchem S355 90.9 40.5 2.63 2835 100.0 52667 8743 1.268 ! Near Maximum !
Vihtavuori N160 106.5 46.6 3.02 2828 95.1 52667 9236 1.246 ! Near Maximum !
Lovex S065 94.3 42.1 2.73 2825 99.1 52667 8990 1.265 ! Near Maximum !
Rottweil R907 93.1 41.7 2.70 2819 97.6 52667 9078 1.260 ! Near Maximum !
IMR 4007 SSC 90.2 41.7 2.70 2819 97.6 52667 9071 1.260 ! Near Maximum !
Somchem S361 98.7 48.0 3.11 2810 94.2 52667 9188 1.257 ! Near Maximum !
Accurate 4064 92.5 39.4 2.56 2810 100.0 52667 8240 1.298 ! Near Maximum !

 

[velvetant]

I run 43.5 gr H4350 with a 130 Berger for 2930 fps in my 6.5 Creedmoor
Should be a good place to start.

 

[Idahotrophyhunter]

With a 1/9 twist would 140 grain bullets be in play???

 

[velvetant]

With a 1/9 twist would 140 grain bullets be in play???

1-9 is on the edge for the Creedmoor, you might be able to run a 140 Partition but don't think you'll be able to do a longer 140 AccuBond.
Wont know until you try but I think it wont work.