Aa2495 = Imr 4895?

[JonB]

Are these two powders basically the same? I scored a pound of AA2494 for 10 bucks, but reloading data for 223 is scarce. Accurate show between 23.6gr and 26.2 gr for 2495 for a Nosler 55 SPBT. I am using Winchester bulk 55gr FMJBT.

Thoughts?

 

[GunTech]

Here's QuickLoad

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 55, Winchester FMC
Cartridge O.A.L. L6: 2.260 inch or 57.40 mm
Barrel Length      : 20.0 inch or 508.0 mm
Powder             : Accurate 2495

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.238% 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

-02.4  100    22.94   2833     980   36280   8300     95.3    1.090
-02.1  100    23.00   2841     985   36578   8320     95.4    1.087
-01.9  100    23.05   2848     991   36879   8339     95.5    1.083
-01.7  100    23.11   2856     996   37182   8359     95.6    1.079
-01.4  100    23.16   2864    1002   37488   8378     95.7    1.074
-01.2  101    23.22   2871    1007   37797   8397     95.8    1.070
-01.0  101    23.28   2879    1012   38108   8416     96.0    1.066
-00.7  101    23.33   2887    1018   38422   8435     96.1    1.062
-00.5  101    23.39   2895    1023   38740   8454     96.2    1.058
-00.2  102    23.44   2902    1029   39059   8472     96.3    1.054
+00.0  102    23.50   2910    1034   39382   8490     96.4    1.050
+00.2  102    23.56   2918    1040   39708   8508     96.5    1.046
+00.5  102    23.61   2925    1045   40037   8526     96.6    1.042
+00.7  103    23.67   2933    1051   40368   8544     96.7    1.038
+01.0  103    23.72   2941    1056   40703   8561     96.8    1.034
+01.2  103    23.78   2948    1062   41041   8578     96.9    1.031

 

[JonB]

Cool Thanks!

I was planning around 24 gr. But I'll drop it back to 23 gr and go from there.

Thanks again.