62 gr CFE 223 Load

[edwea]

Getting ready to work up some loads using the steel core 62 grain pills over cfe 223. What recipes have you used for this combination?

 

[trophyhunter]

The biggest advantage to using CFE in 223/5.56 loads is essentially it's made to fill the case entirely leaving just enough room to set the bullet without going over pressure. I seat mine to 2.250 OAL for optimum magazine feeding over 26.5 grains of CFE you won't get any more in the case without compressing it.

Here's what that load looks like for performance, this is a pressure chart for 5.56:

Cartridge          : 5.56 mm NATO - 5.56 x 45 mmBullet             : .224, 62, PrviPartizan FMJ BT B-419
Useable Case Capaci: 25.342 grain H2O = 1.645 cm³
Cartridge O.A.L. L6: 2.250 inch = 57.15 mm
Barrel Length      : 16.0 inch = 406.4 mm
Powder             : Hodgdon CFE223


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   81    21.20   2205     669   27107   8278     76.1    1.098
-18.0   84    21.73   2265     706   29000   8625     77.8    1.068
-16.0   86    22.26   2327     745   31037   8972     79.5    1.038
-14.0   88    22.79   2389     786   33229   9315     81.2    1.009
-12.0   90    23.32   2452     828   35591   9654     82.9    0.980
-10.0   92    23.85   2517     872   38138   9988     84.5    0.951
-08.0   94    24.38   2581     917   40891  10314     86.0    0.920
-06.0   96    24.91   2647     965   43867  10632     87.5    0.890
-04.0   98    25.44   2713    1014   47088  10940     88.9    0.861
-02.0  100    25.97   2780    1064   50583  11235     90.3    0.833
+00.0  102    26.50   2848    1116   54380  11517     91.6    0.805  ! Near Maximum !
+02.0  104    27.03   2916    1170   58512  11783     92.8    0.779  ! Near Maximum !

 

[turnerdye1]

I'm also a fan of 26.5 but thats under a 55gr Hornady FMJ.

 

[IndyGlockMan]

I load a lot of CFE223 and 26.5 is great for 55gr.
for 62gr, I'd start at 24.0 and work up from there.
26.0-26.5 is probably max for 62gr. that bullet is quite a bit longer than 55gr FMJ.
I would imagine 25.5-26.0 is going to be the sweet spot, but that just theoretical...