Originally Posted by RiverRider
Originally Posted by antelope_sniper
Remember,

The SAAMI specs for the 280 are on the low side, so you are closer to book max than you think. Of course, you have to ask yourself how much pressure you are comfortable with in your given rifle:

Code
Cartridge          : .280 Rem.
Bullet             : .284, 140, Nosler AccuBond 59992
Useable Case Capaci: 60.085 grain H2O = 3.901 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Hodgdon H4350 *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.877% 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

-08.8   96    52.00   2759    2367   49702  10952     95.6    1.158
-07.9   97    52.50   2785    2412   51119  11058     96.0    1.143  ! Near Maximum !
-07.0   98    53.00   2812    2457   52577  11160     96.3    1.128  ! Near Maximum !
-06.1   99    53.50   2838    2503   54077  11261     96.7    1.114  ! Near Maximum !
-05.3  100    54.00   2864    2549   55620  11358     97.0    1.099  ! Near Maximum !
-04.4  101    54.50   2889    2595   57209  11453     97.3    1.085  ! Near Maximum !
-03.5  102    55.00   2915    2642   58844  11545     97.6    1.071  !DANGEROUS LOAD-DO NOT USE!
-02.6  102    55.50   2941    2690   60527  11633     97.8    1.057  !DANGEROUS LOAD-DO NOT USE!
-01.8  103    56.00   2967    2737   62260  11719     98.1    1.044  !DANGEROUS LOAD-DO NOT USE!
-00.9  104    56.50   2993    2785   64044  11801     98.3    1.031  !DANGEROUS LOAD-DO NOT USE!
+00.0  105    57.00   3019    2833   65882  11880     98.6    1.018  !DANGEROUS LOAD-DO NOT USE!
+00.9  106    57.50   3045    2882   67775  11956     98.8    1.005  !DANGEROUS LOAD-DO NOT USE!
+01.8  107    58.00   3071    2931   69726  12028     99.0    0.992  !DANGEROUS LOAD-DO NOT USE!
+02.6  108    58.50   3096    2980   71736  12097     99.2    0.980  !DANGEROUS LOAD-DO NOT USE!
+03.5  109    59.00   3122    3030   73808  12162     99.3    0.967  !DANGEROUS LOAD-DO NOT USE!
+04.4  110    59.50   3148    3080   75945  12223     99.5    0.955  !DANGEROUS LOAD-DO NOT USE!


If you are looking for top velocities, RL-26, hands down......providing you can find it.



Truth (as far as I know). Re 26 is the velocity king right of .280 (and probably .270, though I have no experience with the combo) now, by all appearances. Happily, accuracy seems to be available with the elevated velocities.

Truth be told, though...even though it feels good to top 3000 fps, it just won't matter. why wouldn't 2850 or 2900 work?

Go with the accuracy, wherever you find it.

-confessions of a velocity whore-



Sounds like good advice....thanks.

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