LRT powder and 33 Nos

[El Guapo]

Anyone have starting load data for this powder w 265 ABLR, Nos cases, rem mag primer?

 

[DrMike]

You will have a tough time getting enough in the case to even approach maximum velocity.

 

[El Guapo]

Explains why I couldn’t find data for it, LOL. Thanks Dr Mike! I’ll save it for the 26Nos.

 

[JD338]

For the 33 Nosler with the 265 ABLR, I would start with RL19 if you have any. IMR7828SSC and H4831SC would be a couple more to look at.

JD338

 

[El Guapo]

I have some H4831SC, I can give that a try. I think Dr Mike mentioned in a previous post 81 of MagPro is suspected to get 2700ish FPS. I can get some of that and start from 76.5 if there’s a consensus that it’s worth trying. I’m have some time to get good ideas, the rifle is still being built.

 

[JD338]

Definitely give Mag Pro at try. My buddy has a 33 Nosler although he is running the 200 gr BT in his.
The first couple of years he used the factory Trophy Grade loads with the 265 gr ABLR.
Both are absolute hammers on WT deer.
I'm very impressed with the 33 Nosler. I'd have one if I didn't already have the 338 RUM. You are going to enjoy the 33 Nosler!

JD338

 

[DrMike]

MagPro will work, I should imagine.

Cartridge          : .33 Nosler
Bullet             : .338, 265, Nosler Accu LR 58454
Useable Case Capaci: 78.130 grain H2O = 5.073 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Accurate MAGPRO

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   95    72.81   2461    3563   44307  10560     93.7    1.459
-09.0   96    73.62   2491    3651   45938  10690     94.2    1.435
-08.0   97    74.43   2521    3740   47637  10817     94.7    1.411
-07.0   98    75.24   2551    3831   49407  10940     95.3    1.387
-06.0   99    76.05   2582    3922   51251  11058     95.7    1.364
-05.0  100    76.86   2612    4015   53173  11172     96.2    1.341
-04.0  101    77.66   2642    4109   55172  11282     96.6    1.319
-03.0  102    78.47   2673    4204   57266  11386     97.0    1.297  ! Near Maximum !
-02.0  104    79.28   2703    4300   59440  11486     97.4    1.276  ! Near Maximum !
-01.0  105    80.09   2734    4398   61697  11580     97.8    1.255  ! Near Maximum !
+00.0  106    80.90   2764    4496   64045  11669     98.1    1.234  ! Near Maximum !
+01.0  107    81.71   2795    4596   66492  11752     98.4    1.214  !DANGEROUS LOAD-DO NOT USE!
+02.0  108    82.52   2825    4696   69044  11830     98.7    1.194  !DANGEROUS LOAD-DO NOT USE!
+03.0  109    83.33   2856    4798   71707  11902     98.9    1.174  !DANGEROUS LOAD-DO NOT USE!
+04.0  110    84.14   2886    4901   74487  11967     99.2    1.155  !DANGEROUS LOAD-DO NOT USE!
+05.0  111    84.95   2917    5005   77392  12027     99.4    1.136  !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    106    80.90   2841    4751   71388  11589     99.6    1.181  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    106    80.90   2674    4207   56913  11573     95.4    1.295  ! Near Maximum !

 

[El Guapo]

Thanks guys!