7mm08 130 hot core.

[Michael C. Smith]

Could some run quick load for me please with this bullet and a 20inch barrel with varget imr 4064 imr 4895. Thank you.

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[old_school_guy]

I can't "run a load" for you but I can share my experience. I have a Rem model 7 in 7mm-08 with 18.5" barrel. My load is 49 grs H414, CCI 200 primer, 130 gr Speer HotCor bullets and Hornady cases. Chrony shows 2875 average. Have killed a lot of Whitetails with this load but 1.25" group best I can get. Probably has a lot to do with the slender 'pencil' barrel on the gun.

 

[TackDriver284]

Cartridge : 7 mm-08 Rem.
Bullet : .284, 130, Speer SP 1623
Useable Case Capaci: 51.077 grain H2O = 3.316 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 20.0 inch = 508.0 mm
Powder : IMR 4064

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   89    39.60   2545    1869   41873   9614     95.0    1.155
-09.0   90    40.04   2572    1909   43142   9726     95.4    1.138
-08.0   91    40.48   2598    1949   44448   9837     95.8    1.122
-07.0   92    40.92   2625    1989   45792   9945     96.2    1.106
-06.0   93    41.36   2652    2030   47175  10050     96.6    1.091
-05.0   94    41.80   2679    2071   48600  10152     96.9    1.076
-04.0   95    42.24   2705    2113   50066  10252     97.2    1.061
-03.0   96    42.68   2732    2154   51576  10349     97.5    1.046  ! Near Maximum !
-02.0   97    43.12   2758    2196   53131  10443     97.8    1.032  ! Near Maximum !
-01.0   98    43.56   2785    2239   54732  10533     98.1    1.018  ! Near Maximum !
+00.0   99    44.00   2811    2282   56382  10621     98.4    1.004  ! Near Maximum !
+01.0  100    44.44   2838    2325   58081  10705     98.6    0.991  ! Near Maximum !
+02.0  101    44.88   2864    2368   59832  10787     98.8    0.977  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    45.32   2891    2412   61636  10864     99.0    0.964  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    45.76   2917    2456   63496  10938     99.2    0.951  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    46.20   2943    2500   65413  11009     99.4    0.939  !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     99    44.00   2930    2478   66059  10432    100.0    0.936  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99    44.00   2653    2031   46888  10330     93.0    1.092

Cartridge : 7 mm-08 Rem.
Bullet : .284, 130, Speer SP 1623
Useable Case Capaci: 51.077 grain H2O = 3.316 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 20.0 inch = 508.0 mm
Powder : IMR 4895

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   84    39.60   2547    1873   39730  10115     94.9    1.189
-09.0   85    40.04   2575    1913   40936  10237     95.3    1.172
-08.0   86    40.48   2602    1954   42176  10356     95.7    1.155
-07.0   87    40.92   2629    1996   43452  10473     96.1    1.139
-06.0   88    41.36   2657    2037   44765  10587     96.5    1.123
-05.0   89    41.80   2684    2079   46117  10698     96.8    1.107
-04.0   90    42.24   2711    2121   47507  10805     97.2    1.092
-03.0   91    42.68   2738    2164   48938  10910     97.5    1.077
-02.0   92    43.12   2765    2207   50411  11012     97.8    1.062
-01.0   93    43.56   2792    2251   51927  11110     98.1    1.047  ! Near Maximum !
+00.0   93    44.00   2819    2294   53487  11205     98.4    1.033  ! Near Maximum !
+01.0   94    44.44   2846    2338   55093  11296     98.6    1.019  ! Near Maximum !
+02.0   95    44.88   2873    2383   56747  11384     98.8    1.005  ! Near Maximum !
+03.0   96    45.32   2900    2427   58449  11468     99.0    0.991  ! Near Maximum !
+04.0   97    45.76   2926    2472   60203  11548     99.2    0.978  !DANGEROUS LOAD-DO NOT USE!
+05.0   98    46.20   2953    2517   62009  11624     99.4    0.965  !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     93    44.00   2948    2508   63470  10992    100.0    0.957  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     93    44.00   2646    2021   43753  10863     92.6    1.131

 

[Michael C. Smith]

Thank you both for the help. Looks like the 4895 might be the better powder if it is accurate.

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[TackDriver284]

Thank you both for the help. Looks like the 4895 might be the better powder if it is accurate.

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Anytime, don't underestimate IMR 4064, its a beast in my .308 as well along with Varget.

 

[Michael C. Smith]

I am definitely going to give it a try.

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