QL load data 280 Remington
- Thread starter Wis65x55
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 38,275
- 8,506
Code:
Cartridge : .280 Rem.
Bullet : .284, 131, Hammer HeavyH
Useable Case Capaci: 61.467 grain H2O = 3.991 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Vihtavuori N550 *C*T
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 88 51.12 2747 2195 41222 11301 96.1 1.229
-09.0 89 51.69 2778 2245 42639 11431 96.5 1.210
-08.0 90 52.26 2810 2296 44100 11557 96.9 1.191
-07.0 91 52.82 2841 2348 45608 11679 97.3 1.173
-06.0 92 53.39 2872 2399 47164 11796 97.7 1.155
-05.0 93 53.96 2903 2452 48771 11909 98.0 1.137
-04.0 94 54.53 2934 2505 50429 12017 98.3 1.119 ! Near Maximum !
-03.0 95 55.10 2965 2558 52141 12120 98.6 1.103 ! Near Maximum !
-02.0 96 55.66 2996 2612 53908 12218 98.9 1.086 ! Near Maximum !
-01.0 97 56.23 3027 2666 55734 12311 99.1 1.069 ! Near Maximum !
+00.0 98 56.80 3058 2720 57619 12399 99.3 1.053 ! Near Maximum !
+01.0 99 57.37 3089 2775 59567 12481 99.5 1.038 !DANGEROUS LOAD-DO NOT USE!
+02.0 100 57.94 3119 2830 61579 12558 99.6 1.022 !DANGEROUS LOAD-DO NOT USE!
+03.0 101 58.50 3149 2885 63658 12630 99.8 1.007 !DANGEROUS LOAD-DO NOT USE!
+04.0 102 59.07 3180 2941 65808 12696 99.9 0.992 !DANGEROUS LOAD-DO NOT USE!
+05.0 103 59.64 3210 2997 68030 12756 99.9 0.978 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 98 56.80 3133 2855 63443 12253 100.0 1.010 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 98 56.80 2969 2564 51859 12370 97.4 1.103 ! Near Maximum !- Thread starter
- #3
Does N-160 or N- 555 look any better?
DrMike
Ballistician
- Nov 8, 2006
- 38,275
- 8,506
You can obtain ~100 fps greater velocity by upping pressure to 64K max.
Code:
Cartridge : .280 Rem.
Bullet : .284, 131, Hammer HeavyH
Useable Case Capaci: 61.467 grain H2O = 3.991 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Vihtavuori N550 *C*T
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 91 52.56 2826 2324 44901 11623 97.1 1.181
-09.0 92 53.14 2858 2377 46479 11745 97.5 1.163
-08.0 93 53.73 2891 2430 48108 11863 97.9 1.144
-07.0 94 54.31 2923 2485 49792 11976 98.2 1.126
-06.0 95 54.90 2954 2539 51532 12084 98.5 1.108
-05.0 96 55.48 2986 2594 53329 12187 98.8 1.091
-04.0 97 56.06 3018 2650 55188 12284 99.0 1.074 ! Near Maximum !
-03.0 98 56.65 3050 2705 57108 12376 99.3 1.058 ! Near Maximum !
-02.0 99 57.23 3081 2762 59094 12462 99.4 1.041 ! Near Maximum !
-01.0 100 57.82 3113 2818 61148 12543 99.6 1.025 ! Near Maximum !
+00.0 101 58.40 3144 2875 63273 12617 99.7 1.010 ! Near Maximum !
+01.0 102 58.98 3175 2933 65470 12686 99.9 0.994 !DANGEROUS LOAD-DO NOT USE!
+02.0 103 59.57 3206 2990 67744 12748 99.9 0.979 !DANGEROUS LOAD-DO NOT USE!
+03.0 104 60.15 3237 3048 70098 12805 100.0 0.965 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 60.74 3268 3106 72536 12855 100.0 0.950 !DANGEROUS LOAD-DO NOT USE!
+05.0 106 61.32 3299 3165 75060 12901 100.0 0.936 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 101 58.40 3216 3008 69608 12400 100.0 0.969 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 101 58.40 3057 2719 56994 12669 98.3 1.057 ! Near Maximum !DrMike
Ballistician
- Nov 8, 2006
- 38,275
- 8,506
Otherwise, you have a variety or choices at or near 58K psi max chamber pressure.
I run 64K MCP on all my bolt action 280s. However, SAAAMI standard is ~6K lower.
Code:
Cartridge : .280 Rem.
Bullet : .284, 131, Hammer HeavyH
Useable Case Capaci: 61.467 grain H2O = 3.991 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 22.0 inch = 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 58000 psi, or 399 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 !
8 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
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-26 *C 107.6 65.6 4.25 3193 99.5 58000 14129 1.032 ! Near Maximum !
Norma MRP *C 108.1 63.9 4.14 3154 97.6 58000 13898 1.032 ! Near Maximum !
ReloadSwiss RS 60 *T 98.0 58.2 3.77 3147 100.0 58000 12689 1.026 ! Near Maximum !
ReloadSwiss RS 70 *C 100.7 60.8 3.94 3130 99.2 58000 13163 1.027 ! Near Maximum !
Vihtavuori N560 *C 109.6 63.5 4.11 3128 93.8 58000 13813 1.031 ! Near Maximum !
Elcho 17 97.0 57.7 3.74 3125 100.0 58000 12612 1.031 ! Near Maximum !
Alliant Reloder-17 *T 97.0 57.7 3.74 3125 100.0 58000 12612 1.031 ! Near Maximum !
Raufoss RA15 *C 110.0 63.0 4.08 3116 96.1 57896 13487 1.035 ! Near Maximum !
Alliant Reloder-22 *C 110.0 63.0 4.08 3116 96.1 57896 13487 1.035 ! Near Maximum !
Bofors RP5/NP ~approximation 110.0 63.0 4.08 3116 96.1 57896 13487 1.035 ! Near Maximum !
Accurate MAGPRO 110.0 66.3 4.29 3113 92.0 57900 13754 1.036 ! Near Maximum !
Bofors RL16 TZ *C *T 101.9 56.2 3.64 3112 99.7 58000 12586 1.027 ! Near Maximum !
Alliant Reloder-16 *C *T 101.9 56.2 3.64 3112 99.7 58000 12586 1.027 ! Near Maximum !
Vihtavuori N555 *C*T 109.4 60.8 3.94 3108 99.8 58000 12846 1.056 ! Near Maximum !
IMR 7828 SSC 107.7 62.7 4.06 3102 94.1 58000 13353 1.026 ! Near Maximum !
Somchem S365 104.2 58.7 3.80 3100 100.0 58000 12079 1.043 ! Near Maximum !
ReloadSwiss RS 62 100.7 59.8 3.87 3092 99.4 58000 12672 1.049 ! Near Maximum !
ADI AR 2213 108.5 62.1 4.03 3084 93.9 58000 13163 1.026 ! Near Maximum !
PB Clermont PCL 518 102.5 60.0 3.89 3082 98.1 58000 12743 1.038 ! Near Maximum !
PB Clermont PCL 511 98.4 59.4 3.85 3081 98.4 58000 12693 1.039 ! Near Maximum !
Ramshot Hunter 101.7 59.5 3.86 3079 98.4 58000 12674 1.039 ! Near Maximum !
Ramshot Magnum 109.2 67.4 4.37 3079 96.5 58000 12898 1.029 ! Near Maximum !
Hodgdon H414 96.0 57.5 3.73 3074 97.7 58000 12652 1.042 ! Near Maximum !
Winchester 760 96.0 57.5 3.73 3074 97.7 58000 12652 1.042 ! Near Maximum !
Rottweil R905 106.8 60.0 3.89 3073 96.2 58000 12756 1.039 ! Near Maximum !
Alliant Reloder-19 *C 106.1 60.1 3.90 3071 96.0 58000 12792 1.034 ! Near Maximum !
ADI AR 2209 105.3 59.4 3.85 3067 95.8 58000 12684 1.028 ! Near Maximum !
Norma URP *C 101.3 56.8 3.68 3067 99.4 58000 12307 1.045 ! Near Maximum !
Bofors RP19 ~approximation 101.3 56.8 3.68 3067 99.4 58000 12304 1.045 ! Near Maximum !
Accurate 4350 100.9 57.2 3.70 3066 99.5 58000 12356 1.061 ! Near Maximum !
Vihtavuori N550 *C*T 98.3 56.9 3.69 3064 99.3 58000 12416 1.050 ! Near Maximum !
Bofors RP14 ~approximation 106.9 60.6 3.92 3063 95.9 58000 12692 1.035 ! Near Maximum !
Hodgdon LVR 98.6 55.9 3.62 3060 99.1 58000 12232 1.041 ! Near Maximum !
IMR 4831 106.4 57.7 3.74 3050 99.5 58000 12079 1.054 ! Near Maximum !
Alliant Reloder-23 *C *T 110.0 61.0 3.95 3046 99.9 53489 12496 1.074 ! Near Maximum !
Bofors RP36 ZT *C *T 110.0 61.0 3.95 3046 99.9 53489 12496 1.074 ! Near Maximum !
Norma 204 *C 100.5 58.8 3.81 3046 95.7 58000 12428 1.035 ! Near Maximum !
Bofors RP4 ~approximation 103.8 58.8 3.81 3046 95.7 58000 12428 1.035 ! Near Maximum !
Raufoss RA4 103.8 58.8 3.81 3046 95.7 58000 12428 1.035 ! Near Maximum !
Somchem S385 106.6 61.0 3.95 3039 97.0 58000 12359 1.053 ! Near Maximum !
Hodgdon Hybrid 100V 104.0 57.0 3.70 3036 100.0 58000 11444 1.042 ! Near Maximum !
Hodgdon H4831 SC *T 107.1 61.3 3.97 3031 93.3 58000 12376 1.033 ! Near Maximum !
Bofors RP4 NT *C ~approximation 101.4 58.3 3.78 3029 97.4 58000 12143 1.047 ! Near Maximum !
SNPE Vectan SP 12 110.0 66.5 4.31 3029 93.4 53816 13292 1.063 ! Near Maximum !
Accurate 3100 110.0 62.3 4.04 3026 98.3 57321 12190 1.069 ! Near Maximum !
Vihtavuori N160 *C 98.2 56.8 3.68 3025 99.4 58000 11667 1.046 ! Near Maximum !
PB Clermont PCL 517 110.0 66.5 4.31 3023 93.1 53500 13276 1.066 ! Near Maximum !
Bofors RP3 93.9 53.8 3.48 3022 100.0 58000 11513 1.064 ! Near Maximum !
Norma 203 old 93.9 53.8 3.48 3022 100.0 58000 11513 1.064 ! Near Maximum !
Winchester Supreme 780 104.5 62.4 4.05 3020 95.7 58000 12100 1.038 ! Near Maximum !
Hodgdon H380 93.2 54.0 3.50 3020 99.2 58000 11809 1.055 ! Near Maximum !
Rottweil R903 96.0 53.8 3.49 3017 100.0 58000 11437 1.064 ! Near Maximum !
Bofors RP15 110.0 61.7 3.99 3016 94.5 52378 13119 1.084 ! Near Maximum !
Winchester WXR 110.0 61.7 3.99 3016 94.5 52378 13119 1.084 ! Near Maximum !
Shooters World SW4350 100.5 56.3 3.65 3015 97.8 58000 11978 1.056 ! Near Maximum !
Lovex S070 100.5 56.3 3.65 3015 97.8 58000 11978 1.056 ! Near Maximum !
Rottweil R904 104.4 58.3 3.78 3010 94.5 58000 12015 1.039 ! Near Maximum !
Somchem S355 95.9 53.1 3.44 3009 100.0 58000 11395 1.058 ! Near Maximum !
IMR 4955 Enduron *C*T 107.9 59.5 3.86 2996 93.7 58000 11971 1.039 ! Near Maximum !
Shooters World Long Rifle 99.2 55.0 3.56 2995 98.7 58000 11602 1.056 ! Near Maximum !
Lovex S065 99.2 55.0 3.56 2995 98.7 58000 11602 1.056 ! Near Maximum !
Rottweil R907 97.8 54.4 3.53 2990 97.0 58000 11668 1.051 ! Near Maximum !
Bofors RP7 97.8 54.4 3.53 2990 97.0 58000 11668 1.051 ! Near Maximum !
Accurate 4064 93.7 52.0 3.37 2989 100.0 58000 10845 1.084 ! Near Maximum !
IMR 4007 SSC 94.8 54.5 3.53 2989 97.0 58000 11659 1.051 ! Near Maximum !
Hodgdon H4831 *T 110.0 60.6 3.92 2987 92.6 55356 12204 1.055 ! Near Maximum !
Bofors RP5 NT *C ~approximation 110.0 63.5 4.12 2972 90.0 54321 12449 1.063 ! Near Maximum !
ADI AP 2214 110.0 64.7 4.19 2972 92.3 53296 12641 1.068 ! Near Maximum !
Somchem S361 103.2 62.3 4.04 2971 93.5 58000 11689 1.050 ! Near Maximum !I run 64K MCP on all my bolt action 280s. However, SAAAMI standard is ~6K lower.
- Thread starter
- #6
Thanks!
