QL request-7mag/162amax/rl33

[double_d]

I have a good supply of RL33 and just scored some 162 amax's and would like to try them in my 7mm rem mag. Would love to see what QL thinks about this combo in a 26" barrel.

Thanks DD

 

[DrMike]

Cartridge          : 7 mm Rem. Mag.(SAAMI)
Bullet             : .284, 162, Hornady A-MAX 28402
Useable Case Capaci: 72.429 grain H2O = 4.703 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-33

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   86    63.12   2320    1937   27753  11046     80.7    1.688
-18.0   88    64.70   2392    2058   29867  11532     82.7    1.641
-16.0   90    66.28   2465    2185   32165  12010     84.7    1.595
-14.0   92    67.85   2539    2318   34667  12477     86.6    1.552
-12.0   95    69.43   2614    2458   37397  12930     88.4    1.503
-10.0   97    71.01   2690    2603   40377  13365     90.1    1.447
-08.0   99    72.59   2767    2754   43637  13779     91.7    1.393
-06.0  101    74.17   2845    2911   47210  14168     93.2    1.342
-04.0  103    75.74   2924    3074   51135  14530     94.5    1.292
-02.0  105    77.32   3003    3244   55456  14861     95.8    1.243  ! Near Maximum !
+00.0  108    78.90   3083    3418   60222  15157     96.8    1.196  ! Near Maximum !
+02.0  110    80.48   3163    3599   65497  15415     97.8    1.151  !DANGEROUS LOAD-DO NOT USE!
+04.0  112    82.06   3244    3785   71350  15632     98.6    1.107  !DANGEROUS LOAD-DO NOT USE!
+06.0  114    83.63   3325    3977   77868  15804     99.2    1.065  !DANGEROUS LOAD-DO NOT USE!
+08.0  116    85.21   3407    4174   85148  15927     99.6    1.023  !DANGEROUS LOAD-DO NOT USE!
+10.0  118    86.79   3488    4377   93270  15999     99.9    0.983  !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    108    78.90   3285    3882   76685  14985    100.0    1.084  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    108    78.90   2813    2846   46794  14184     87.6    1.341

 

[double_d]

Thank You DrMike, I have loaded some and stopped at 78....looks like it turned out to be a good stopping point for first time out.

Thanks again!

 

[baltz526]

How did the Powder Compression feel at 78gr? I have been looking for a different powder to try in the 7mm rem mag.

 

[FOTIS]

Good question

 

[double_d]

Not bad at all, but I am loading them pretty long ~3.5"