QL request please.. 270 Win

AK7AN

Beginner
Oct 30, 2015
191
8
270 Win, 150 gr Speer Grand Slam, Powders IMR 7828ssc, Norma MRP, I have CCI 200 or CCI 250 primers, I am not sure which primer would be better.. :?:
Thank you in advance to everyone who is so willing to help.
Ed
 
Cartridge : .270 Win. (SAAMI)
Bullet : .277, 150, Speer GRSLAM 1608
Useable Case Capaci: 61.350 grain H2O = 3.983 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 7828 SSC

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 83 48.24 2339 1822 32161 10946 86.6 1.467
-18.0 85 49.45 2403 1923 34446 11349 88.2 1.426
-16.0 87 50.65 2468 2028 36898 11741 89.7 1.386
-14.0 89 51.86 2533 2136 39542 12120 91.1 1.340
-12.0 91 53.06 2598 2248 42386 12483 92.4 1.296
-10.0 93 54.27 2664 2364 45450 12830 93.7 1.253
-08.0 96 55.48 2730 2483 48756 13157 94.8 1.211
-06.0 98 56.68 2797 2605 52325 13463 95.9 1.172
-04.0 100 57.89 2863 2731 56181 13745 96.8 1.133 ! Near Maximum !
-02.0 102 59.09 2930 2860 60368 14001 97.6 1.096 ! Near Maximum !
+00.0 104 60.30 2997 2992 64905 14230 98.3 1.060 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 61.51 3064 3127 69834 14430 98.9 1.025 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 62.71 3131 3265 75199 14598 99.4 0.992 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 63.92 3198 3406 81054 14732 99.7 0.959 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 65.12 3264 3549 87445 14832 99.9 0.928 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 66.33 3331 3695 94470 14894 100.0 0.897 !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 60.30 3150 3305 79233 13859 100.0 0.976 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 60.30 2788 2589 52453 13714 91.6 1.167





Cartridge : .270 Win. (SAAMI)
Bullet : .277, 150, Speer GRSLAM 1608
Useable Case Capaci: 61.350 grain H2O = 3.983 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Norma MRP

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 83 48.80 2365 1863 31757 11483 91.0 1.486
-18.0 85 50.02 2429 1965 34048 11871 92.4 1.445
-16.0 87 51.24 2494 2072 36515 12243 93.7 1.405
-14.0 89 52.46 2559 2181 39173 12596 94.9 1.360
-12.0 91 53.68 2624 2293 42040 12929 96.0 1.314
-10.0 93 54.90 2689 2409 45134 13239 97.0 1.271
-08.0 95 56.12 2755 2527 48474 13524 97.8 1.228
-06.0 97 57.34 2820 2648 52089 13782 98.5 1.188
-04.0 99 58.56 2885 2772 56003 14011 99.1 1.149 ! Near Maximum !
-02.0 101 59.78 2950 2898 60244 14210 99.5 1.111 ! Near Maximum !
+00.0 103 61.00 3014 3026 64815 14377 99.8 1.075 !DANGEROUS LOAD-DO NOT USE!
+02.0 105 62.22 3079 3157 69742 14509 100.0 1.040 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 63.44 3142 3289 75075 14608 100.0 1.006 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 64.66 3206 3423 80856 14697 100.0 0.973 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 65.88 3269 3559 87132 14779 100.0 0.942 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 67.10 3332 3697 93962 14856 100.0 0.912 !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 103 61.00 3153 3312 79796 13800 100.0 0.987 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 61.00 2811 2631 51016 14264 95.2 1.191



and a powder chart .

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 150, Speer GRSLAM 1608
Useable Case Capaci: 61.350 grain H2O = 3.983 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 105 %
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-26 102.5 62.3 4.04 3040 100.0 65000 14227 1.076 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 103.4 61.0 3.96 3017 99.8 65000 14382 1.073 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 100.3 60.4 3.91 3009 100.0 65000 13949 1.060 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 105.0 60.7 3.93 3002 97.9 64444 14671 1.073 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 103.8 60.3 3.91 2998 98.3 65000 14234 1.059 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 105.0 63.1 4.09 2984 96.5 63933 14700 1.083 ! Near Maximum !
ADI AR 2213 104.8 59.9 3.88 2984 98.2 65000 14090 1.058 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 60 93.9 55.7 3.61 2982 100.0 65000 12782 1.067 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 105.0 60.0 3.89 2972 99.1 63898 14106 1.083 ! Near Maximum !
Raufoss RA15 105.0 60.0 3.89 2972 99.1 63898 14106 1.083 ! Near Maximum !
Alliant Reloder-22 105.0 60.0 3.89 2972 99.1 63898 14106 1.083 ! Near Maximum !
Ramshot Magnum 105.0 64.7 4.19 2968 99.6 64855 13524 1.067 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 92.9 55.1 3.57 2958 100.0 65000 12690 1.075 !DANGEROUS LOAD-DO NOT USE!
Elcho 17 92.9 55.1 3.57 2958 100.0 65000 12690 1.075 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 101.7 57.2 3.71 2948 99.1 65000 13404 1.064 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 102.3 57.8 3.75 2945 99.1 65000 13482 1.072 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511 94.6 57.0 3.69 2940 100.0 65000 13073 1.078 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 97.8 57.1 3.70 2939 100.0 65000 13055 1.078 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 62 96.3 57.1 3.70 2939 100.0 65000 12816 1.091 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 103.0 58.3 3.78 2939 99.1 65000 13385 1.073 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 92.4 55.2 3.58 2937 99.8 65000 13111 1.080 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 92.4 55.2 3.58 2937 99.8 65000 13111 1.080 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 99.4 55.9 3.62 2924 100.0 65000 12127 1.089 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 100.2 56.7 3.67 2922 98.9 65000 13133 1.072 !DANGEROUS LOAD-DO NOT USE!
Norma 204 97.0 56.7 3.67 2922 98.9 65000 13133 1.072 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 100.2 56.7 3.67 2922 98.9 65000 13133 1.072 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC 103.4 59.1 3.83 2920 97.6 65000 13271 1.069 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 94.6 54.7 3.54 2917 100.0 65000 12641 1.089 !DANGEROUS LOAD-DO NOT USE!
Norma URP 97.3 54.4 3.53 2917 100.0 65000 12491 1.085 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 97.4 54.5 3.53 2917 100.0 65000 12488 1.085 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 105.0 63.4 4.11 2914 97.8 58475 14151 1.113 ! Near Maximum !
Accurate 4350 96.4 54.5 3.53 2912 100.0 65000 12453 1.101 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 102.4 58.6 3.79 2909 99.6 65000 12891 1.091 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 105.0 63.4 4.11 2909 97.7 58126 14153 1.116 ! Near Maximum !
Rottweil R905 105.0 58.9 3.82 2903 97.3 61414 13595 1.103 ! Near Maximum !
IMR 4831 102.1 55.3 3.58 2899 100.0 65000 12226 1.093 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 97.8 56.1 3.64 2899 99.7 65000 12659 1.084 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 100.7 60.1 3.89 2898 99.0 65000 12792 1.077 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 101.0 56.3 3.65 2894 98.3 65000 12812 1.074 !DANGEROUS LOAD-DO NOT USE!
Bofors RP15 105.0 58.7 3.81 2888 98.3 58307 13834 1.130 ! Near Maximum !
Winchester WXR 105.0 58.7 3.81 2888 98.3 58307 13834 1.130 ! Near Maximum !
Lovex S070 97.1 54.3 3.52 2884 99.8 65000 12447 1.091 !DANGEROUS LOAD-DO NOT USE!
Accurate 3100 105.0 59.4 3.85 2881 100.0 63857 12496 1.113 ! Near Maximum !
Hodgdon H380 90.0 52.0 3.37 2878 100.0 65000 12066 1.091 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V 99.9 54.6 3.54 2876 100.0 65000 11528 1.085 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-23 105.0 58.1 3.76 2875 100.0 58665 12633 1.132 ! Near Maximum !
Bofors RP7 95.0 52.7 3.42 2866 99.6 65000 12258 1.085 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 95.0 52.7 3.42 2866 99.6 65000 12258 1.085 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 92.0 52.8 3.42 2866 99.6 65000 12250 1.085 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 99.9 60.2 3.90 2863 97.6 65000 12555 1.084 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 90.2 51.6 3.34 2862 100.0 65000 11609 1.103 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 90.2 51.6 3.34 2862 100.0 65000 11609 1.103 !DANGEROUS LOAD-DO NOT USE!
Lovex S065 96.0 53.1 3.44 2862 100.0 65000 11972 1.091 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 92.3 51.6 3.34 2858 100.0 65000 11521 1.103 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 105.0 61.6 3.99 2856 97.1 57021 13530 1.122 ! Near Maximum !
Somchem S355 92.5 51.2 3.32 2855 100.0 65000 11536 1.096 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 105.0 57.7 3.74 2853 96.7 55578 13703 1.139 ! Near Maximum !
Hodgdon H4831 105.0 57.7 3.74 2846 96.7 59822 12987 1.110 ! Near Maximum !
Bofors RP5 NT ~approximation 105.0 60.5 3.92 2842 94.8 58003 13405 1.119 ! Near Maximum !
Alliant Reloder-25 105.0 59.1 3.83 2829 99.8 52263 13492 1.176
Vihtavuori N165 105.0 58.7 3.81 2818 98.8 59446 12374 1.126 ! Near Maximum !
Vihtavuori N160 105.0 56.9 3.69 2801 97.3 59643 12301 1.120 ! Near Maximum !
Norma MRP 2 105.0 59.4 3.85 2740 95.3 47711 13710 1.239
Bofors RP30 105.0 59.4 3.85 2740 95.3 47711 13710 1.239
Vihtavuori N570 105.0 62.6 4.06 2723 88.4 45973 14357 1.251
Lovex S071 105.0 56.2 3.64 2716 99.2 52485 12108 1.220
ADI AR 2217 105.0 58.7 3.81 2684 94.4 47526 12803 1.224
Hodgdon H1000 105.0 58.7 3.81 2684 94.4 47526 12803 1.224
Alliant Reloder-33 105.0 64.4 4.17 2639 87.1 42807 13822 1.296
ADI AR 2225 105.0 59.7 3.87 2626 96.1 41598 13385 1.308
Hodgdon Retumbo 105.0 59.7 3.87 2626 96.1 41598 13385 1.308
ReloadSwiss RS 80 105.0 64.4 4.17 2588 86.5 40713 13567 1.326
Lovex D100 105.0 63.9 4.14 2584 83.1 47324 11769 1.246
ADI AR 2218 105.0 63.3 4.10 2561 82.8 41194 13442 1.312
Vihtavuori 24N41 105.0 63.3 4.10 2549 79.5 43695 12099 1.283
Vihtavuori N170 105.0 58.7 3.81 2534 86.0 43452 11791 1.315
Norma 217 105.0 58.5 3.79 2527 92.9 36426 13188 1.404
Hodgdon H870 105.0 61.3 3.97 2494 85.7 36752 12871 1.396
Alliant Reloder-50 105.0 64.2 4.16 2437 81.1 33964 12915 1.458
Bofors 12,7mmRA NC1214 Lot20115087 105.0 62.8 4.07 2404 73.7 36260 11884 1.456
Hodgdon 50BMG 105.0 60.3 3.91 2366 70.9 35790 11026 1.417
Hodgdon US 869 105.0 63.3 4.10 2364 74.9 35496 11104 1.424
SNPE Vectan SP 13 105.0 60.7 3.93 2316 79.3 32416 11004 1.475
Accurate 8700 105.0 62.0 4.02 2281 77.2 31923 10796 1.488
Vihtavuori 20N29 105.0 63.9 4.14 2253 73.7 30533 10773 1.522
PB Clermont PCL 513/520/9520 105.0 60.7 3.93 2253 75.8 30551 10572 1.511
NC A3502 ,test only 105.0 58.1 3.76 2084 52.1 29156 7907 1.554
TLP A 502(RH) ,test only 105.0 58.1 3.76 2060 56.6 27260 8400 1.599
V1734 7-multiperf ,test only 105.0 58.1 3.76 1485 25.8 15369 3876 2.051
 
I would start out using the CCI200 primers . I don't think a magnum primer will be needed for this combo . you can always try a magnum primer later in your load work up to see if it helps .
 
jimbires,
Thanks so much for your help.. I have often thought about trying a Magnum primer and wasn't sure if it would be a benefit. Something to try and post the results..
Once again,
Thanks
Ed
 
I think a magnum primer can be to hot for some powder - cartridges combinations , causing reduced accuracy . I've read a mag primer can cause the bullet to move prematurely . it can always be tried though .
 
CCI-BR & 200s have always worked great for me with the 270 Win with H-4831. But my 25-06 did best with CCI 250 mag primers with IMR 4350 and 117 Sierra Pro Hunters. You never know until you give them a try.
 
A standard rifle primer such as CCI 200 (F210, WLR or R 9.5) will provide more than enough brisance to ensure ignition along the entire powder column of a standard powder column such as the 270 Win. If you are hunting in extreme cold (say 0 F or lower), the addition brisance of a magnum primer may help in assuring complete ignition. My experience hunting in temperatures down to -35 C (-31F) has not required a magnum primer in the 280 Rem or similar cartridges.
 
Thanks for all the info on the primers.. Looks like CCI 200's will do the job.

Great info Dr Mike... and you say you are no expert.. :wink: :wink:

Looks like I might have 1000 CCI 250's for trading material..

take care
Ed
 
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