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7x64 and Amax

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https://forums.accuratereloading.com/eve/forums/a/tpc/f/8991022351/m/6881098722

04 January 2017, 03:08
Scrumbag
7x64 and Amax
Hi folks, any kind soul feel like running quickload for me?

7x64
600mm barrel
OAL 3.307
162 gr Amax
COAL: 64mm
CIP pressures please.

Powders: N165 and anything else you'd suggest gratefully received?

If anyone has a pet load for 280 Rem and 162 Amax that would be a great start.
Scrummy
04 January 2017, 05:40
jpl
This what you want:?

Cartridge          : 7 x 64 Brenneke
Bullet             : .284, 162, Hornady A-MAX 28402
Useable Case Capaci: 59.341 grain H2O = 3.853 cm³
Cartridge O.A.L. L6: 3.307 inch = 84.00 mm
Barrel Length      : 23.6 inch = 600.0 mm

Matching Maximum Pressure: 52666 psi, or 363 MPa
or a maximum loading ratio or filling of 105 %

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Norma MRP                           99.6     56.8     3.68    2823    99.0    52667   11942   1.244  ! Near Maximum !
Vihtavuori N560                    101.0     56.5     3.66    2805    96.0    52667   12009   1.242  ! Near Maximum !
Ramshot Magnum (Big Boy)           103.9     60.9     3.94    2804    96.9    52667   11950   1.233  ! Near Maximum !
SNPE Vectan SP 12                  104.2     60.8     3.94    2804    97.0    52667   11924   1.233  ! Near Maximum !
PB Clermont PCL 517                104.3     60.9     3.95    2804    96.9    52667   11939   1.233  ! Near Maximum !
Accurate MAGPRO                    101.6     59.1     3.83    2796    94.4    52667   12053   1.248  ! Near Maximum !
Raufoss RA15                       101.3     56.0     3.63    2789    97.8    52667   11646   1.247  ! Near Maximum !
Alliant Reloder-22                 101.3     56.0     3.63    2789    97.8    52667   11646   1.247  ! Near Maximum !
Bofors RP5/NP ~approximation       101.3     56.0     3.63    2789    97.8    52667   11646   1.247  ! Near Maximum !
IMR 7828 SSC                        99.6     56.0     3.63    2788    96.4    52667   11637   1.234  ! Near Maximum !
Winchester WXR                     104.0     56.3     3.65    2787    97.7    52667   11651   1.248  ! Near Maximum !
IMR 7828                           105.0     55.8     3.62    2779    96.3    52153   11605   1.240  ! Near Maximum !
ADI AR 2213                        100.4     55.5     3.60    2772    96.2    52667   11495   1.234  ! Near Maximum !
ADI AP 2214                        104.6     59.4     3.85    2763    96.4    52667   11419   1.232  ! Near Maximum !
Alliant Reloder-25                 105.0     57.1     3.70    2759    99.6    48851   11488   1.279
Rottweil R905                      102.4     55.6     3.60    2751    95.9    52667   11249   1.250  ! Near Maximum !
Somchem S365                        95.0     51.7     3.35    2746   100.0    52667   10070   1.263  ! Near Maximum !
Hodgdon H4350                       92.9     50.6     3.28    2743    99.6    52667   10628   1.247  ! Near Maximum !
ADI AR 2209                         97.1     52.8     3.42    2742    97.6    52667   10948   1.240  ! Near Maximum !
Ramshot Hunter                      93.1     52.6     3.41    2741    99.4    52667   10771   1.255  ! Near Maximum !
Alliant Reloder-19                  97.5     53.3     3.46    2741    97.6    52667   11008   1.249  ! Near Maximum !
Alliant Reloder-17                  85.6     49.1     3.18    2736   100.0    52667   10160   1.242  ! Near Maximum !
Bofors RP14 ~approximation          98.3     53.8     3.48    2735    97.6    52667   10932   1.249  ! Near Maximum !
Winchester 760                      87.8     50.8     3.29    2735    98.9    52667   10747   1.258  ! Near Maximum !
IMR 4350                            95.0     49.8     3.23    2726    99.2    52667   10535   1.253  ! Near Maximum !
Norma URP                           92.5     50.1     3.24    2723   100.0    52667   10340   1.264  ! Near Maximum !
Bofors RP19 ~approximation          92.6     50.1     3.25    2723   100.0    52667   10337   1.264  ! Near Maximum !
Vihtavuori N550                     89.8     50.2     3.25    2722    99.9    52667   10447   1.269  ! Near Maximum !
Accurate 4350                       96.3     50.4     3.27    2721   100.0    52667   10355   1.283  ! Near Maximum !
Raufoss RA4                         95.5     52.2     3.38    2717    97.4    52667   10701   1.251  ! Near Maximum !
Bofors RP4 ~approximation           95.5     52.2     3.38    2717    97.4    52667   10701   1.251  ! Near Maximum !
Norma 204                           92.5     52.2     3.38    2717    97.4    52667   10701   1.251  ! Near Maximum !
Hodgdon H4831                      103.0     54.7     3.55    2715    95.5    52667   10793   1.246  ! Near Maximum !
Hodgdon H4831 SC                    99.0     54.7     3.55    2715    95.5    52667   10793   1.246  ! Near Maximum !
Hodgdon H414                        85.5     49.8     3.23    2712    98.9    52667   10552   1.268  ! Near Maximum !
Somchem S385                        97.9     54.1     3.51    2710    98.4    52667   10594   1.271  ! Near Maximum !
IMR 4831                            97.2     50.9     3.30    2708   100.0    52667   10138   1.273  ! Near Maximum !
Ramshot BigGame                     86.1     48.6     3.15    2704   100.0    52667    9922   1.262  ! Near Maximum !
SNPE Vectan SP 11                   86.2     48.7     3.16    2703   100.0    52667    9909   1.263  ! Near Maximum !
Winchester Supreme 780              96.7     55.8     3.61    2702    97.5    52667   10508   1.253  ! Near Maximum !
Vihtavuori N165                    103.2     55.9     3.62    2698    98.1    52667   10356   1.258  ! Near Maximum !

04 January 2017, 23:01
Scrumbag
JPL, that's very kind and very helpful sir!

Happy new year to you!
05 July 2017, 17:40
snowman
JPL I'm curious why IMR 4831 wasn't included in the powder selection ? I have a couple 280 Rem and a very similar 7x64 and IMR 4831 is hard to beat accuracy wise and most loading manuals have it near the top velocity wise.
05 July 2017, 21:42
z1r
quote:
Originally posted by snowman:
JPL I'm curious why IMR 4831 wasn't included in the powder selection ? I have a couple 280 Rem and a very similar 7x64 and IMR 4831 is hard to beat accuracy wise and most loading manuals have it near the top velocity wise.


I believe it was:

IMR 4831 97.2 50.9 3.30 2708 100.0 52667 10138 1.273 ! Near Maximum !




Aut vincere aut mori
05 July 2017, 22:36
snowman
zlr I must be going blind. I'll be dammed if I could see that this morning. Thanks for that.
16 August 2017, 17:09
WILDCAT 762
quote:
Originally posted by Scrumbag:
Hi folks, any kind soul feel like running quickload for me?

7x64
600mm barrel
OAL 3.307
162 gr Amax
COAL: 64mm
CIP pressures please.

Powders: N165 and anything else you'd suggest gratefully received?

If anyone has a pet load for 280 Rem and 162 Amax that would be a great start.
Scrummy


Hallo Scrummy,

in Austria and Germany they are using a 7x64IX...ist an "Ackley Improved" one using a 30° Shoulder.

left to right: Standard 7x64Case, two 7x64IX with 168grs BergerVLD and 163 Hornady A-Max.


Ballistic out to 1000 Meters.
Best Powder is Norma MRP or ReloadSwiss RS-70

Best
Wildcat
30 August 2017, 14:58
Scrumbag
Thanks wildcat though I'm probably just going to try and maximise the performance of my existing 7x64.

Scrummy
30 August 2017, 20:44
WILDCAT 762
Hi,

N-165 is way to slow.
Try NORMA MRP, Rottweil R-905 or, best Reload Swiss RS-70
Start 56,5grs. giving 863m/sec, MAX. 58,2 is 890m/sec.

Best
Wildcat
30 August 2017, 21:14
Scrumbag
Hi Wildcat,

Thanks I will look at some RS70