AA2520 in 300 Savage

[filmjunkie4ever]

I recently tried a new load in my old 99 EG (24") barrel. 39 grs of AA 2520 with the 150 grain Nosler Ballistic Tip. My friend Andy shot a hole in the dead center of my chronograph a year or so back and I have yet to replace it...anyone have any idea the speed it may be going? I was guessing around 2500-2550 fps.

Its very accurate though I feel I could go up to 40 or 41 grains if I wanted to stretch her legs...which I dont really. Just curious.

 

[SJB358]

FJM, I'm using Hornady brass, CCIBR2's and the 150 SST also. I'm using 41 grains of AA2520 and getting 2675 out of my 24" barreled M99. Accuracy seems to be real good as well, at least with the peep sights on it. Might break down and put an old 4X Leupold on it to hunt with though. It's a sweet rig, and I think the 150 SST should act real good at those speeds. What a fun rifle to shoot though.

 

[DrMike]

QL projects this to be a relatively mild load.

Cartridge          : .300 Savage
Bullet             : .308, 150, Nosler BalTip 30150
Useable Case Capaci: 42.449 grain H2O = 2.756 cm³
Cartridge O.A.L. L6: 2.600 inch = 66.04 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Accurate 2520

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   76    31.20   2055    1406   22130   4913     87.2    1.659
-18.0   78    31.98   2106    1477   23563   5076     88.5    1.618
-16.0   79    32.76   2158    1551   25098   5234     89.8    1.578
-14.0   81    33.54   2209    1626   26743   5388     91.0    1.540
-12.0   83    34.32   2261    1703   28508   5537     92.1    1.502
-10.0   85    35.10   2313    1782   30402   5680     93.2    1.465
-08.0   87    35.88   2365    1863   32434   5817     94.2    1.429
-06.0   89    36.66   2417    1946   34622   5947     95.1    1.393
-04.0   91    37.44   2469    2030   36956   6070     95.9    1.359
-02.0   93    38.22   2521    2116   39436   6184     96.7    1.321
+00.0   95    39.00   2572    2204   42083   6291     97.4    1.283
+02.0   96    39.78   2624    2293   44922   6388     98.0    1.247
+04.0   98    40.56   2675    2384   47970   6476     98.5    1.212  ! Near Maximum !
+06.0  100    41.34   2726    2476   51245   6555     99.0    1.178  ! Near Maximum !
+08.0  102    42.12   2778    2570   54769   6622     99.3    1.145  !DANGEROUS LOAD-DO NOT USE!
+10.0  104    42.90   2828    2664   58564   6679     99.6    1.114  !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     95    39.00   2709    2444   51920   6154    100.0    1.181  ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba     95    39.00   2389    1900   32977   6060     90.2    1.408

 

[SJB358]

I think so Mike. I figure the 300 made a good name for itself with a plain bullet around that speed. A Nosler on top is just that much better nowadays.