quickload numbers for 6ppc usa?

[longrange223]

can someone with quickload run some numbers for me on the 6ppc usa? want to try using vihta vuori n530 in a sako s491 single shot with a 22" 12 twist barrel,using lapua brass & 68 gr bullets,looking for a starting point that's safe,was thinking around 28grs but want to see the pressure numbers of how high i can go before it gets unsafe,thx...r

 

[Erik Cortina]

can someone with quickload run some numbers for me on the 6ppc usa? want to try using vihta vuori n530 in a sako s491 single shot with a 22" 12 twist barrel,using lapua brass & 68 gr bullets,looking for a starting point that's safe,was thinking around 28grs but want to see the pressure numbers of how high i can go before it gets unsafe,thx...r

Start at 27.5 and work up.

 

[Chopper818]

I started around 27 grs of 322 behind 65 gr vld's...but Im currently using 26.6 322 behind 70 gr SMK's
in a Sako III 6ppc usa with very good results.

 

[Chuckhunter]

Here are the numbers, be safe and good luck: Please remember that QL is only an approximation and the results are based off of QL's default settings.

Cartridge : 6 mm PPC USA
Bullet : .243, 68, Berger
Cartridge O.A.L. L6: 2.193 inch or 55.70 mm
Barrel Length : 22.0 inch or 558.8 mm
Powder : Vihtavuori N530

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0 92 25.65 2842 1219 38447 7100 89.9 1.103
-09.0 93 25.94 2874 1247 39757 7194 90.5 1.086
-08.0 94 26.22 2907 1276 41122 7287 91.0 1.070
-07.0 95 26.51 2939 1304 42529 7378 91.6 1.054
-06.0 96 26.79 2972 1333 43982 7467 92.1 1.038
-05.0 97 27.08 3004 1363 45482 7554 92.7 1.023
-04.0 98 27.36 3037 1393 47032 7639 93.2 1.007
-03.0 99 27.65 3070 1423 48640 7722 93.7 0.993
-02.0 100 27.93 3102 1453 50307 7803 94.1 0.978 ! Near Maximum !
-01.0 101 28.22 3135 1484 52037 7881 94.6 0.964 ! Near Maximum !
+00.0 102 28.50 3168 1515 53832 7958 95.0 0.949 ! Near Maximum !
+01.0 103 28.79 3201 1547 55696 8031 95.5 0.935 ! Near Maximum !
+02.0 104 29.07 3233 1578 57632 8103 95.9 0.922 ! Near Maximum !
+03.0 105 29.36 3266 1611 59642 8171 96.3 0.908 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 29.64 3299 1643 61732 8237 96.6 0.895 !DANGEROUS LOAD-DO NOT USE!
+05.0 107 29.93 3332 1676 63904 8300 97.0 0.882 !DANGEROUS LOAD-DO NOT USE!