Aa2495 = Imr 4895?


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JonB
December 2, 2007, 07:29 PM
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?

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GunTech
December 2, 2007, 08:12 PM
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
December 2, 2007, 09:02 PM
Cool Thanks!

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

Thanks again.

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