7x65R

Kuula · Feb 27, 2019

I bought a single shot rifle in this caliber and there is not too much data available.
Can you tell me some tips where to start? I,m planning to use the 160gr accubonds and maybe the LR's too. Powders are Vihtavuori N160, N165 and the N560. I use Federal 215 primers.

gbflyer · Feb 27, 2019

Hornady info:

The disclaimer reads this to be for bolt guns, start low for anything else.

DrMike · Feb 27, 2019

Code:

Cartridge          : 7 x 65 R Brenneke
Bullet             : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 59.074 grain H2O = 3.836 cm³
Cartridge O.A.L. L6: 3.291 inch = 83.59 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Vihtavuori N160

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   94    48.96   2328    1925   39545  10921     89.9    1.301
-09.0   95    49.50   2355    1970   40815  11077     90.4    1.281
-08.0   96    50.05   2382    2015   42131  11230     91.0    1.262
-07.0   97    50.59   2409    2061   43489  11382     91.6    1.243
-06.0   98    51.14   2436    2108   44890  11531     92.1    1.224
-05.0   99    51.68   2463    2155   46331  11678     92.6    1.206
-04.0  100    52.22   2490    2202   47814  11822     93.1    1.188  ! Near Maximum !
-03.0  101    52.77   2517    2251   49343  11963     93.6    1.170  ! Near Maximum !
-02.0  102    53.31   2544    2300   50923  12102     94.1    1.153  ! Near Maximum !
-01.0  103    53.86   2571    2349   52556  12237     94.5    1.136  ! Near Maximum !
+00.0  104    54.40   2599    2399   54244  12369     95.0    1.119  ! Near Maximum !
+01.0  105    54.94   2626    2450   55990  12498     95.4    1.103  !DANGEROUS LOAD-DO NOT USE!
+02.0  106    55.49   2653    2502   57796  12624     95.8    1.087  !DANGEROUS LOAD-DO NOT USE!
+03.0  107    56.03   2681    2553   59664  12746     96.2    1.071  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    56.58   2708    2606   61597  12864     96.6    1.055  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    57.12   2736    2659   63599  12978     96.9    1.040  !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    104    54.40   2734    2655   64186  12550     99.1    1.038  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    104    54.40   2429    2097   44585  11649     87.4    1.223

Code:

Cartridge          : 7 x 65 R Brenneke
Bullet             : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 59.074 grain H2O = 3.836 cm³
Cartridge O.A.L. L6: 3.291 inch = 83.59 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Vihtavuori N165

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   94    50.58   2332    1933   38335  11180     92.0    1.323
-09.0   95    51.14   2360    1979   39635  11334     92.6    1.302
-08.0   96    51.70   2388    2027   40983  11485     93.2    1.280
-07.0   97    52.27   2417    2075   42381  11633     93.7    1.260
-06.0   98    52.83   2445    2124   43831  11777     94.2    1.240
-05.0   99    53.39   2473    2173   45335  11918     94.7    1.221
-04.0  100    53.95   2501    2223   46894  12055     95.2    1.201  ! Near Maximum !
-03.0  101    54.51   2530    2274   48515  12188     95.7    1.182  ! Near Maximum !
-02.0  102    55.08   2558    2325   50189  12317     96.1    1.164  ! Near Maximum !
-01.0  103    55.64   2587    2377   51919  12442     96.5    1.145  ! Near Maximum !
+00.0  104    56.20   2615    2429   53708  12562     96.9    1.127  ! Near Maximum !
+01.0  105    56.76   2643    2483   55562  12677     97.3    1.110  !DANGEROUS LOAD-DO NOT USE!
+02.0  106    57.32   2672    2537   57485  12788     97.6    1.092  !DANGEROUS LOAD-DO NOT USE!
+03.0  107    57.89   2701    2591   59482  12893     98.0    1.075  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    58.45   2729    2646   61555  12994     98.3    1.058  !DANGEROUS LOAD-DO NOT USE!
+05.0  110    59.01   2758    2702   63708  13089     98.6    1.042  !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    104    56.20   2754    2694   64868  12501     99.9    1.039  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    104    56.20   2434    2104   43169  11944     89.6    1.242

Code:

Cartridge          : 7 x 65 R Brenneke
Bullet             : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 59.074 grain H2O = 3.836 cm³
Cartridge O.A.L. L6: 3.291 inch = 83.59 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Vihtavuori N560

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    51.21   2408    2061   38649  12640     88.2    1.307
-09.0   93    51.78   2439    2113   39945  12839     88.9    1.285
-08.0   94    52.35   2469    2166   41288  13035     89.6    1.265
-07.0   95    52.92   2499    2219   42678  13228     90.3    1.244
-06.0   96    53.49   2530    2274   44122  13418     90.9    1.225
-05.0   97    54.06   2561    2329   45616  13605     91.5    1.205
-04.0   98    54.62   2591    2386   47166  13787     92.1    1.186  ! Near Maximum !
-03.0   99    55.19   2622    2443   48773  13967     92.7    1.167  ! Near Maximum !
-02.0  100    55.76   2653    2501   50441  14141     93.3    1.148  ! Near Maximum !
-01.0  101    56.33   2684    2559   52172  14312     93.8    1.130  ! Near Maximum !
+00.0  102    56.90   2715    2619   53966  14478     94.4    1.112  ! Near Maximum !
+01.0  103    57.47   2746    2679   55831  14639     94.9    1.095  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    58.04   2777    2740   57769  14795     95.4    1.077  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    58.61   2809    2802   59783  14946     95.8    1.060  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    59.18   2840    2865   61874  15092     96.3    1.043  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    59.75   2871    2929   64049  15231     96.7    1.027  !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    56.90   2883    2952   66108  14735     99.1    1.019  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    56.90   2504    2227   43446  13414     85.3    1.229

Neat cartridge, to be sure.

Kuula · Jul 9, 2019

Tried the 160's with N160 up to 56,3gr and mv 2780fps, accuracy was ok, but not as good as i wanted.

I'm going for Red Stag hunting in october and I'm trying to decide that what bullet should I use. The range can be between 40-300 meter and maybe the 150 Partition would
Be a better bullet?

The rifle is Haenel Jaeger 9 and it has a famous Franz Jäger tilting block action so it should handle quite hot loads.

Can you help me out deciding the best bullet to use for Red Deer? And maybe give a some data using the Vihtavuori N160 powder

7x65R

Kuula

Beginner

gbflyer

Handloader

DrMike

Ballistician

Kuula

Beginner

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